Mewtwo (SSBU)

Mewtwo in Super Smash Bros. Ultimate
Universe	Pokémon
Other playable appearances	in Melee in SSB4
Availability	Unlockable
Final Smash	Psystrike

“	A Legendary Pokémon known for its technical moves. Use Confusion or Disable as a diversion, then land a Shadow Ball! For its Final Smash, Mewtwo transforms into Mega Mewtwo Y and fires a projectile that freezes and launches the opponent!	”
—Super Smash Blog, Super Smash Bros. Ultimate Official Site

Mewtwo (ミュウツー, Mewtwo) is a playable character in Super Smash Bros. Ultimate. It was confirmed on June 12th, 2018. Like in Melee, Mewtwo is once again an unlockable character. Mewtwo is classified as fighter #24.

Keiji Fujiwara's portrayal of Mewtwo from Smash 4 was repurposed for Ultimate.

How to unlock

Complete one of the following:

• Play VS. matches, with Mewtwo being the 60th character to be unlocked.
• Clear Classic Mode with Fox or any character in his unlock tree, being the last character unlocked.
• Have Mewtwo join the player's party in World of Light.

With the exception of the third method, Mewtwo must then be defeated on Spear Pillar.

Attributes

Mewtwo is overall a very polarizing character. It does not fall under one specific character archetype; despite being relatively large with a slew of powerful moves, Mewtwo is a lightweight fighter. Its overall mobility is outstanding, and it boasts among the fastest walking, dashing, and air speeds in the game, along with average falling speed and gravity, all of which give it a good approach and a very potent neutral game.

First and foremost, Mewtwo has an excellent neutral game and surprisingly good combo ability for its overall powerful moveset. Its down tilt boasts very low ending lag and quick startup, while launching opponents at mostly vertical angles. This makes it function as a very safe and versatile combo starter, as it can be spammed relatively safely with low risk. It also has many potent followups, such as into its grab, up tilt, and forward aerial. The lattermost, named Shadow Scratch, is also overall extremely versatile; Its quick startup, relatively low ending lag, and low landing lag, along with its ability to autocancel in a short hop, makes it an excellent combo tool at low percentages, such as being able to combo into itself and down tilt upon landing. Its high knockback scaling also makes it a viable KO move at high percentages, especially offstage. Its neutral aerial has a long-lasting hitbox and can disrupt approaches due to Mewtwo containing full aerial momentum while in use. While it does not have KO potential, it makes up for its overall versatility in being able to interrupt approaches and punish air dodges. It even has some combo potential, as it can combo into forward aerial, back aerial and even down aerial depending on the last hit's launching direction. Additionally, it can drag opponents down for grounded followups, and in midair, it can gimp opponents with poor recoveries.

However, the centerpiece of Mewtwo's neutral game is its main projectile, Shadow Ball. No matter the percentage, it always has excellent versatility, as it can combo into virtually any of Mewtwo's quicker moves at any percentage depending on the charge of the projectile. However, its function is not limited to as a combo starter; when fully charged, it becomes one of the strongest projectiles in the game, as even some of the heaviest characters will be outright KO'd at around 100% near the ledge. It also deals decent shield damage as well, with half-health shields instantly breaking after a fully-charged Shadow Ball. In midair, it can even be used as a landing mixup as a fully charged variant pushes Mewtwo back a considerable distance.

Mewtwo's grab game is also very rewarding if it lands a grab, as its throws are among the best and most well-rounded out of the cast. Forward throw, when all of its hits connect, is one of the most damaging throws in the game, giving Mewtwo damage racking potential and the ability to conveniently refresh its stale moves. Its up and back throws are among the strongest of their kind; up throw is able to KO any character by 165%, and back throw KO's most opponents under 100% at the ledge. Lastly, its down throw is a useful mixup combo starter at higher percentages, and can also be used to read an opponent's reaction and capitalize on it. The main weaknesses in Mewtwo's grab game are its somewhat mediocre grab range, which can lead to whiffed grab attempts and subsequent counterattacks, and its lack of a true combo throw, which make its damage racking potential reliant on reading the opponent's options and punishing accordingly. Overall, though, both its air game and grab game give Mewtwo a variety of options to quickly rack up damage and score KOs on its opponents.

Due to Mewtwo's varied attributes and special moves, its recovery potential is among the best in the game. Its combination of a high air speed, a high double jump (the highest in the game), and average falling speed give it great offstage survivability. Teleport, its primary recovery move, covers a long distance and provides full intangibility and directional maneuverability, making Mewtwo exceedingly difficult to edgeguard. Furthermore, all three of its other special moves offer a form of assistance with recovery; Shadow Ball's recoil can push Mewtwo back far enough to be a viable horizontal recovery option if facing away from the ledge, Confusion temporarily stalls it in the air, and Disable temporarily slows Mewtwo's falling speed. With these options, Mewtwo has many ways to mix up its recovery and get safely back onstage, while being able to punish overzealous edgeguarders with its powerful and massive aerials without losing recovery distance.

Lastly, Mewtwo has surprisingly good range for a lightweight fighter. All of its smash attacks have favorable disjointed hitboxes that allow them to beat out attacks safely (especially up smash, as using it at the right time can prevent any stall-and-fall attack). Its tail attacks also offer excellent range, despite not being as disjointed. Its back aerial in particular offers very large coverage behind Mewtwo and can be used in decently quick succession, making it a useful approaching and walling tool. Its tilts all utilize Mewtwo's tail and have good range, and each have low ending lag, making them usually safe to throw out in the neutral game. Tying into this is its aforementioned mobility; Mewtwo's extremely fast horizontal movement speed grants it a very potent punishment game with its range, allowing it to bait approaches and easily punish them with its long-reaching moves.

Despite Mewtwo's strengths, it has some noticeable weaknesses, the most glaring of which is its infamously poor endurance. Mewtwo's very light weight makes it easy to KO, while its tall, awkward frame, average falling speed and average gravity make it easier to combo compared to other characters of its weight class. Furthermore, Mewtwo lacks an effective aerial move to disrupt combos, and an attempt to Teleport out of a combo can be punished due to its noticeable ending lag and momentum. While it has a multitude of KO options, it often has trouble landing them. Up and back throw can be risky to attempt because of Mewtwo's aforementioned average grab range. Forward and down smash have slow start-up lag, whereas up smash has minimal horizontal range below its blast of dark energy and high ending lag. Despite their speed and accuracy, Shadow Scratch's and Shadow Ball's KO potentials can be hindered via staleness because of their frequent usage in Mewtwo's combos and neutral game, respectively. Lastly, its frame data is slightly below-average, which makes its attacks even more prone to punishment if they are not spaced well. As a result, Mewtwo can pressure effectively, yet is also vulnerable to pressure.

Overall, Mewtwo is a non-traditional glass cannon who falls under the category of the bait-and-punish archetype; Mewtwo must play cautiously and aware so the opponent does not capitalize on its tall hurtbox and light weight. However, this does not mean Mewtwo is forced to rely on turtling, as its outstanding mobility, excellent air game, and overall powerful moveset make it a force to be reckoned with. As such, Mewtwo is a "high-risk, high-reward" character with a fairly high learning curve, as it has to capitalize on reads more often than not because of its frailty and susceptibility to pressure. As a result, while Mewtwo's moveset may not be as versatile as other glass cannons such as Wolf, it makes up for instead having immense power and damage output, granting it a huge strength that most lightweights do not have. As such, Mewtwo could potentially have the strength and range of an archetypal heavyweight character, but still retains the combo game of a lightweight character.

Mewtwo's competitive potential is up for debate. Players like ESAM and Armada believe that Mewtwo should be ranked in the higher tiers due to its excellent mobility and damage racking game, while ZeRo considered placing it in lower tiers due to its large hurtbox and light weight, as well as its potent neutral being toned down slightly. Mewtwo itself has a small playerbase, but the players who are dedicated to maining the character, like SDX have managed to get decent results. However, as SDX has recently dropped the character, its representation in tournaments have undergone a significant decline, with its playerbase still remaining minimal.

Changes from Super Smash Bros. 4

In SSB4, Mewtwo was initially a lower mid-tier character before game updates buffed it significantly, allowing it to reach top-tier status (10th out of 55 characters) in the game's latter lifespan thanks to a combination of several attributes, including a powerful neutral game courtesy of excellent mobility as well as a powerful projectile, and a dangerous combo game. Likely as a result of its dominance in the previous game, Mewtwo has received a large mix of buffs and nerfs in its transition to Ultimate, but was significantly nerfed overall.

Mewtwo's largest nerf was to its hurtbox. Mewtwo's tail hurtboxes' sizes were considerably increased, which widened its hurtbox overall. Considering Mewtwo is already one of the lightest characters in the game, this forces Mewtwo to be much more cautious with using its tail attacks, as trading with even a decently strong attack can prove fatal. Additionally, this now causes Mewtwo to be usually clipped by attacks during some situations (such as when turning around). Overall, these changes worsen both its spacing and defensive game.

On top of this, Mewtwo also received many nerfs to its best moves, hindering both its previously strong neutral game and combo ability. Shadow Ball now deals negative shield damage, making it less viable as a zoning and pressuring option from a distance. Neutral attack, as with most others, can no longer effectively jab cancel, removing its wide range of previously true followups. Down tilt has more endlag, which combined with the changes to knockback, impairs its combo potential and narrows Mewtwo's KO setups. Neutral aerial has heavily increased ending lag, a shorter duration, and smaller hitboxes, making it less viable for covering options and removing its aerial combo potential, limiting Mewtwo to land with the move and read the opponent's trajectory accordingly. Forward aerial is slightly slower and launches at a slightly lower angle, worsening its combo ability into itself and almost completely removing its ability to initiate a deadly wall of pain at low to mid percentages.

The changes to air dodging in Ultimate have also hindered Mewtwo moreso than any other character. Since air dodges can now only be utilized once before landing or getting hit, combined with them generally having more ending lag, this especially affects Mewtwo as it previously held the distinction of having the air dodge with the lowest ending lag out of the entire roster (allowing it to be spammed rather safely to play mindgames), which renders it even more susceptible to combos and juggling, given its large hurtbox for its weight class.

However, Mewtwo has received a multitude of buffs in the transition as well. Mewtwo's KO potential is considerably better and more consistent overall; moves like its neutral attack, forward tilt and dash attack deal more damage and knockback, with all of them now gaining KO potential at high percentages. Other attacks, such as Disable and its smash attacks, have noticeably increased range, allowing them to secure KOs more easily from deceptive ranges. Shadow Ball has also received a slight increase in knockback when fully charged, making it an even more viable KOing option. Mewtwo has also seen slight improvements to its survivability, thanks to its heavier weight and faster falling speed, although it remains a rather easy character to KO.

Most of the universal changes to gameplay mechanics have also benefitted Mewtwo. Although the changes to air dodging mostly hamper it, they has also made its edgeguarding game more potent, thanks to its quick air speed, large variety of aerial attacks, useful projectile, long double jump and powerful recovery. The universal increase in mobility and traction across the cast, the reintroduction of dash-dancing, and the ability to use any attack out of a run, also benefits Mewtwo, as it can now get around much quicker, ocasionally play mindgames on its approach, and punish more easily both in the neutral game and out of shield. Finally, the reductions to landing lag improve Mewtwo's safety on hit, opening some new combo routes due to its streamlined jumpsquat.

In the end, Mewtwo is considered to be notably less effective than its SSB4 iteration, as despite the improvements made to its mobility, survivability, kill power, and the benefits it received from Ultimate's mechanics, these changes do not completely compensate for the considerable nerfs it has received to its defensive game, combo ability, and hurtbox. As a result, Mewtwo has not made a significant impact in Ultimate's early metagame, as its playerbase is very small; players such as Abadango, WaDi and Rich Brown have dropped Mewtwo in favor of other characters, and although it initially received favorable success from Secret in Ultimate's early metagame, he has since dropped it in favor of Joker, resulting in Mewtwo's results to have a significant decline. Due to this, many top players now consider it a lower-mid or low tier character, and a few others even believe it to be one of the worst characters in the game. However, game updates have offered Mewtwo bountiful buffs that have either helped alleviate some of its issues, improved its strengths, or fix a few inconsistencies; this has caused some professionals to reassess their opinions on the character, with some believing it to have untapped potential and to be viable. As of now, Mewtwo's true viability in competitive play remains debatable.

Aesthetics

• As with other previous downloadable fighters in SSB4, Mewtwo's appearance is largely unchanged, though its model features a more subdued color scheme. Its body appears to have a glossy sheen, and the end of its tail is also slightly larger.
• Mewtwo's idle pose has been altered; it now keeps one of its arms lifted and stands more upright, similar to its stance in Pokémon Stadium. However, it will revert to its idle animation from SSB4 while holding a small item.
• Mewtwo's falling animation has been altered; it does not keep its arms folded, only doing so when falling forward or backward.
• Side taunt now has it slightly levitate over the ground.
• Mewtwo's victory poses have been slightly altered:
  • The pose where Mewtwo laughs and floats has it float higher and look farther away from the screen.
  • The pose where Mewtwo thrusts its hand outward has an altered camera angle more towards its hand.
  • The pose where Mewtwo faces away from the screen has Mewtwo keep its eyes shut for slightly longer.
• As with all previous downloadable fighters in SSB4, Mewtwo now has a unique Palutena's Guidance conversation.

Attributes

• Like all characters, Mewtwo's jumpsquat takes 3 frames to complete (down from 5).
• Mewtwo is heavier (74 → 79), weighing as much as Kirby. This improves its survivability.
• Mewtwo runs faster (2.05 → 2.255).
  • Mewtwo's initial dash is significantly faster (1.4 → 2.255).
• Mewtwo walks slightly faster (1.2 → 1.26).
• Mewtwo's traction is significantly higher (0.04 → 0.116), going from the second-worst in the game to above-average. This makes it easier for Mewtwo to punish out of shield.
• Mewtwo's air speed is higher (1.25 → 1.313).
• Mewtwo performs its double jump more quickly, improving its recovery and combo game.
• Mewtwo's falling speed is faster (1.5 → 1.55). This improves its vertical survivability, but makes it more susceptible to combos.
  • Mewtwo's fast falling speed is faster (2.4 → 2.48).
• Both rolls grant more intangibility (frames 4-13 → 4-15 (forward), 5-16 (back)).
• Back roll has more startup (frame 4 → 5) and ending lag (FAF 30 → 35).
• Spot dodge grants more intangibility (frames 2-14 → 3-17).
• Spot dodge has more startup (frame 2 → 3), with its total duration increased as well (FAF 25 → 26).
• Air dodge grants more intangibility (frames 2-24 → 3-26).
• Air dodge has more startup (frame 2 → 3) and significantly increased ending lag (FAF 29 → 52), no longer being the fastest in the game. In combination with the removal of unlimited air dodging, this greatly hinders Mewtwo's approach and defensive options.
• Mewtwo has an additional hurtbox in its tail that extends to near the tip. This reduces the disjoints of Mewtwo's attacks involving its tail, and gives it a bigger hurtbox overall.

Ground attacks

• Neutral attack:
  • The first hit has a longer hitbox duration (frame 5 → frames 5-6) and less ending lag (FAF 25 → 22).
  • The first hit transitions into the infinite faster (frame 10 → 7).
  • The first hit has altered angles to keep opponents closer to Mewtwo (76°/70° → 361°/180°), and a hitstun modifier of 6, allowing it to lock opponents and connect better into the infinite.
  • The infinite has received several changes to allow it to connect much more effectively and rack up more damage overall, despite dealing slightly less damage per hit (1% → 0.8%):
    • It has less startup (frame 8 → 5), a shorter gap between hits (6 frames → 3), and a lower hitlag multiplier (1× → 0.5×) and SDI multiplier (1× → 0.4×), making it harder to escape.
    • It has a different launch angle to keep grounded opponents closer to Mewtwo (70°/89° → 361°).
    • It deals less knockback (14 base/30 scaling → 8/10) and each hit has a hitstun modifier of 3.
    • It has a larger hitbox (5.2u → 5.6u).
  • The infinite's finisher has a longer hitbox duration (frame 6 → frames 6-7).
  • The finisher deals slightly more damage (2% → 2.5%) with no compensation on knockback, allowing it to KO under 200% near the edge.
  • The first hit deals less damage (4% → 3%) and knockback (50/20 base/20/60 scaling → 25/20 base/15 scaling), removing its guaranteed jab cancel setups from Smash 4, despite its lower ending lag and hitstun modifier.
  • Like other neutral attacks, the first hit can transition into the infinite by simply holding the attack button or pressing it once more if it hits an opponent, rather than only by pressing it multiple times. This makes it harder to jab cancel, as the window to input other attacks instead of triggering the infinite is effectively shortened.
  • The finisher has more ending lag (FAF 36 → 41).
  • The first hit and the finisher have higher hitlag multipliers (1× → 1.8× (hit 1), 2× (finisher)).
  • The infinite has gained a shieldstun multiplier of 4×. This allows it to lock opponents into their shields between each hit, and thus pressure them more effectively, but also allows them to cancel shieldstun and punish Mewtwo more easily if they shield 10 hits or more.
• Forward tilt:
  • Forward tilt deals more damage (10%/9%/8% → 11%/10%/9%) and knockback (20 base/100 scaling → 70/75), increasing its safety on hit at low percents and greatly improving its KO potential.
    • However, this removes its ability to lock opponents at low percents.
  • It has larger hitboxes (4.3u/3.7u/2.9u → 5u/4.6u/4.2u) with altered placements (X offset: 0u/1.8u/0u → 1.5u/2.5u/2u, Z offset: 0u/-2u/0u → 0u/0u/0u (Z-offset)), improving its range.
  • It has an altered animation: Mewtwo spins its full body around before swinging its tail.
• Up tilt:
  • Up tilt deals more damage (6%/5%/4.5%/4.5% → 7%/6%/5.5%/5.5% (clean), 5%/4%/3% → 6%/5%/4% (late)), with knockback mostly compensated on all but the clean fourth hitbox (114/80/55 → 105/71). This slightly improves the move's KO potential, without worsening its combo ability due to Mewtwo's faster jumpsquat.
    • The clean fourth hitbox has more knockback scaling (50 → 71). This makes it safer on hit at lower percents, but hinders its combo potential at higher percents, removing guaranteed KO setups into up smash.
  • The clean tipper hitbox launches towards Mewtwo like the rest of the hitboxes (361° → 110°), improving the move's consistency.
  • The move has a slightly altered animation, with Mewtwo beginning its tail swipe lower to the ground and landing on its feet immediately after the flip. This improves its overall reach on both sides, but makes landing the clean fourth hitbox noticeably harder due to being outprioritized by the other hitboxes.
• Down tilt:
  • Down tilt has slightly more ending lag (FAF 21 → 24), hindering its combo potential.
  • It has an altered animation: Mewtwo sweeps its tail inward instead of outward.
• Dash attack:
  • Dash attack has a new animation that puts Mewtwo's body more parallel to the ground during the attack.
  • Its clean sweetspot and late sourspot deal more damage (10%/4% → 12%/4.5%) with no compensation on knockback, granting the clean sweetspot KO potential at realistic percentages.
  • It has gained a shieldstun multiplier of 1.3×. In combination with its higher damage and the increased shieldstun for ground attacks, this makes it safer on shield.
  • Due to the changes to jostle mechanics, it can no longer cross-up shields unless done at point-blank on smaller characters, allowing it to be punished more easily despite its increased shieldstun.
  • It has a higher hitlag multiplier (1× → 1.25×), making it easier to DI.
  • It launches at lower angles (60°/70°/80° → 54°/60°/70°), further improving the clean hit's KO potential, but hindering the late hit's combo potential.
• Forward smash:
  • Forward smash can be angled.
  • It has a longer hitbox duration (frames 19-21 → 19-22).
  • The sweetspot deals more damage (19% → 20%) and knockback (21 base/85 scaling → 30/90), significantly improving its KO potential (allowing it to KO under 90% from the center of Final Destination, compared to previously not KOing until around 110% under the same circumstances).
  • The sweetspot is larger (5.6u → 6.3u), improving its range.
• Up smash:
  • Up smash's first hit sends at an autolink angle (100° → 368°), allowing it to connect better into the subsequent hits.
  • The last hit has a longer duration (frames 34-35 → 22-25).
  • The last hit has more knockback scaling (107 → 111), improving its KO potential.
  • The move hits four times instead of seven. However, the first three hits deal more damage (1% → 2%), leaving its total damage output unchanged.
    • The last hit has less startup to accommodate for this change (frame 34 → 22). This significantly shortens the move's hitbox duration, while its total duration remains unchanged, greatly increasing its ending lag as well. As a result, the move is much less effective as an anti-air, and easier to punish if it misses or is shielded.
  • Due to the changes to jostle mechanics, the first hit is notably more difficult to land, sometimes missing opponents even at point blank range due to Mewtwo's character model pushing them away. As a result, the move is much less consistent at hitting opponents than in Smash 4, especially as an out-of-shield punish.
  • The energy swirl is opaque and stylized, instead of a translucent whirl of particles.
• Down smash:
  • Down smash has less ending lag (FAF 44 → 41).
  • It deals more damage (15% → 16%) with no knockback compensation, improving its KO potential. Alongside its reduced ending lag, this also makes it safer on shield.
  • It deals additional shield damage (0 → 8 (close)/4 (far)), allowing it to better wear down shields, even with the potential of breaking them depending on charge.
  • It has a longer hitbox duration (frames 21-22 → 21-23).
  • It has much larger hitboxes (4u/8.7u → 7.5u/11u) that are placed higher (Y offset: 3.5u/3.5u → 4u/4u), improving its range. In combination with its longer hitbox duration, this makes it more effective for 2 frame punishes.
  • It has a higher hitlag multiplier (1× → 1.3×), making it easier to DI.

Aerial attacks

• All aerials have less landing lag (13 frames → 10 (neutral), 14 → 8 (forward), 17 → 10 (back), 13 → 8 (up), 18 → 11 (down)).
• Neutral aerial:
  • The looping hits' deal more set knockback (22/46 → 30/60), and their feet hitboxes send at an autolink angle (110° → 367°), allowing them to connect more reliably.
  • The move takes longer to interrupt (FAF 46 → 50).
  • The looping hits have smaller hitboxes (3u → 2.5u), reducing the move's range for most of its duration.
    • However, the last hit has a larger hitbox (10.9u → 13.5u).
  • The move hits six times instead of nine. However, the first five hits deal more damage (1% → 1.6%), leaving its total damage output unchanged.
    • The last hit has less startup to accommodate for this change (frame 39 → 27), This considerably shortens the move's hitbox duration, and significantly increases its ending lag in combination with its slower interruptibility, no longer allowing Mewtwo to act only five frames after the hitboxes cease.
  • Due to the change to the Sakurai angle against aerial opponents (45.2637° → 38°), the move has improved edgeguarding potential, but coupled with its increased ending lag, it has almost entirely lost its combo potential into other aerials without landing.
  • The last hit has a higher hitlag multiplier (1× → 1.2×), making it easier to DI, but giving Mewtwo more time to react to the direction the opponent is sent into.
  • The move has altered visuals: rather than emitting multicolored orbs, Mewtwo discharges electricity around itself while flashing with a blue overlay.
• Forward aerial:
  • Forward aerial's arm hitbox is larger (3.9u → 4.5u).
  • It sends at a lower angle (50° → 47°), slightly improving its KO potential near the edge.
  • It has more startup (frame 6 → 7) and ending lag (FAF 38 → 40). In combination with the new knockback speed up effect decreasing hitstun for higher knockback values, this removes its combo potential into itself.
  • It auto-cancels later (frame 36 → 37).
• Back aerial:
  • Back aerial's sweetspot has increased knockback scaling (90 → 101) while its middlespot and sourspot deal more damage (11%/9% → 12%/11%), improving its KO potential.
• Up aerial:
  • Up aerial deals more damage (11%/10%/9% → 12%/11%/10%) and has increased knockback scaling on the sweetspot, with its middlespot and sourspot mostly compensated (97 → 98/92/92), notably improving its KO potential.
    • Its increased knockback hinders its combo potential at higher percents, especially out of an immediate double jump.
  • It has an altered animation: Mewtwo no longer faces the screen after finishing its tail sweep.
• Down aerial:
  • Down aerial's sweetspot is placed lower (Y offset: -6.5u → -7.7u), improving its vertical range.
  • It has more ending lag (FAF 46 → 48).
  • The sourspot has a higher hitlag multiplier (1× → 1.2×), making it easier to DI.
  • It now uses a darkness effect.

Throws and other attacks

• Grabs:
  • All grabs have more ending lag (FAF 36 → 40 (standing), 43 → 48 (dash), 41 → 43 (pivot)).
  • Dash and pivot grab have more startup (frame 9 → 10 (dash), 10 → 11 (pivot)).
  • Dash grab has less range (Z2 offset: 12.7u → 12u).
  • Pivot grab has more range (Z2 offset: -15.2u → -17.3u).
• Pummel:
  • Pummel deals more hitlag (7 frames → 14), but has less startup (frame 4 → 1) and significantly less ending lag (FAF 19 → 7), shortening its duration.
  • It deals less damage (2% → 1.3%).
  • It has a new animation where it clenches its hand to attack. Additionally, Mewtwo no longer leans into the opponent when performed.
  • It now attacks with dark energy rather than electricity, accompanied by the attack having a darkness effect instead of an electric one.
• Forward throw:
  • Forward throw's Shadow Balls launch at a lower angle (43° → 38°), slightly improving its ability to set up edgeguards.
  • The Shadow Balls have a lower SDI multiplier (1× → 0.8×), making them harder to escape.
  • The speed of the throw is no longer weight dependent, causing the shots to connect less reliably against lightweights, but more reliably against heavyweights.
  • The universally increased hitlag causes the shots to connect more reliably at lower percents, while the knockback speed-up effect causes them to connect less reliably at higher percents.
    • However, the new mechanic of hitlag being reduced as the number of players in a match increases worsens the shots' ability to connect in battles with more than two players.
  • The throw has more set knockback (30 → 35).
• Back throw:
  • Back throw deals more damage (10% → 11%) with no compensation on knockback, improving its KO potential.
  • It has an altered animation: Mewtwo tosses the opponent over its shoulder nonchalantly.
• Down throw:
  • Down throw has less ending lag (FAF 46 → 42), granting the move combo potential; most notably, it now has a KO setup into forward aerial at high percentages.
• Edge attack:
  • Edge attack deals more damage (7% → 9%).

Special moves

• Shadow Ball:
  • Like other charge-cancelable moves, Mewtwo can cancel Shadow Ball by spot dodging or jumping.
  • It has less startup (frame 23 → 18) and ending lag (FAF 49 → 40).
  • It reaches its full charge more quickly (138 → 123 frames).
  • Uncharged Shadow Ball deals more damage (2.5% → 4%).
  • Fully charged Shadow Ball has more knockback scaling (67 → 71), improving its KO potential.
  • The changes to Shadow Ball in combination with the universally increased hitlag and Mewtwo's faster mobility allow it to combo into other attacks at various percentages depending on charge and positioning, such as dash attack and forward aerial.
  • The move can no longer be charge-canceled immediately, instead incurring 4 frames of lag beforehand.
  • Rather than gaining additional shield damage when charged that increases alongside the charge level, it has negative shield damage even when uncharged, which further decreases as it is charged (0 (minimum), 3 (maximum) → -0.6, -4). This worsens fully charged Shadow Balls' ability to break shields.
  • Mewtwo always vocalizes when releasing a fully charged Shadow Ball, regardless whether the full charge was stored or not.
• Confusion:
  • Confusion has less startup and reflects projectiles faster (frame 12 → 10), with its total duration reduced as well (FAF 45 → 43).
  • It has larger hitboxes (6.4u/9.2u → 7.4u/10.2u), improving its range.
  • It incapacitates opponents for a certain amount of time after they are swirled around, which increases alongside their percent. Mewtwo has an advantage of one frame over the opponent starting at 15%, which increases by one frame for each additional 25%, until capping at six frames with a percentage of 140%. This grants the move followup potential, notably enabling a near-inescapable KO setup into forward aerial when performed in the air with the opponent at 140% or higher.
  • It halts Mewtwo's horizontal momentum in the air, hindering its utility as a recovery move and landing mixup.
  • It no longer corrects the opponent's position to the center of the ripple, which may leave them too far away to follow up with an attack, but far enough to be unable to punish Mewtwo with an aerial attack after using the move.
• Teleport:
  • Teleport has less ending lag on the ground (FAF 53 → 45).
  • It has less landing lag (30 frames → 20).
  • It can grab onto ledges more easily, with the new ledge grab range being roughly twice its original size.
  • It grants slightly more intangibility frames (frames 9-17 → 9-19).
  • It retains less horizontal momentum on the ground due to Mewtwo's increased traction, making ledge-canceling notably harder to perform.
  • It has a darker, more distinct visual effect when Mewtwo disappears and reappears.
• Disable:
  • Disable grants full intangibility during frames 10-16.
  • The hitboxes are placed lower (Y offset: 0u → -1.7u) and further out (Z offset: 0u → 2.5u), improving the move's range against short opponents, as well as horizontally alongside the previous change.
  • It has an altered animation: Mewtwo spreads its arms out without leaning forwards, which resembles its official artwork. The particle effect has also been changed to become a green flash of light that travels outwards at eye level, making its hitbox clearer.
  • It has more ending lag (FAF 48 → 53).
  • The ground-only hitbox is slightly smaller (2.34u → 2.3u).
• Psystrike:
  • Psystrike deals more damage (30% → 40%).
  • It has altered knockback (50 base/80 scaling → 80/40), making it stronger on smaller stages but weaker on larger stages.
  • It has modified visual effects. The projectile is colored purple and white throughout the orb instead of purple at the edge and black/yellow/blue in the center. The center of the orb resembles a burst of energy instead of a vortex, and the move causes more intense visual effects when it hits an opponent.
  • The final blow of the attack now happens on all opponents simultaneously rather than one at a time.

Update history

Mewtwo has received a mixture of buffs and nerfs, but has been noticeably buffed overall. In update 2.0.0, its recovery became safer as Teleport grabs edges more reliably, which also reduces the risk of a self-destruct when attempting to directly Teleport to the edge. In update 3.0.0, Mewtwo's endurance was improved due to its increased weight, and some of its moves deal more damage and gained more range. This same update also increased Shadow Ball's knockback, but made it significantly less of a threat on shield. In update 4.0.0, Mewtwo's tail hurtbox was shrunken slightly, which made spacing with its tail attacks more effective. Additionally, some of its primary KO moves were improved, while Confusion was given slightly less start-up. As a result, Mewtwo fares better compared to release.

1.1.0

• Disable has more ending lag (FAF 47 → 52).

2.0.0

• Dash attack has a lower shieldstun multiplier. (1.875x → 1.3x).
• Forward tilt now always sends opponents in front of Mewtwo.
• Teleport can grab on to ledges more easily, with the new ledge grab range being roughly twice its original size.

3.0.0

• Mewtwo's weight was increased (77 → 79), slightly improving its endurance.
• Neutral attack has less start-up lag (frame 6 → 5) and ending lag (FAF 23 → 22).
• Forward tilt deals more damage (10%/9%/8% → 11%/10%/9%), with knockback scaling not fully compensated (80 → 75).
• Up tilt deals more damage (6%/5%/4.5% → 7%/6%/5.5% (early), 5%/4%/3% → 6%/5%/4% (late)), with knockback scaling not fully compensated (114/114/80/80 → 105/105/71/71 (clean), 114 → 105 (late)).
• Up tilt's tip hitbox's angle has been adjusted (361° → 110°). This improves its combo potential.
• Forward smash has more range (5.6u → 6.3u).
• Up aerial deals more damage (11%/10%/9% → 12%/11%/10%)
  • Up aerial's knockback scaling was overcompensated (97 → 86), KOing later but improving its combo potential.
• Edge roll grants more intangibility (1-21 → 1-27).
• Edge attack has slightly more range (Z offset: 19u-5.5u → 19u-3.5u).
• Fully charged Shadow Ball has more knockback scaling (67 → 71).
• Shadow Ball deals less shield damage (0/3 (uncharged/fully charged) → -0.6/-4).

4.0.0

• Mewtwo has a slightly shorter and thinner hurtbox on its tail.
• Up smash's last hit has more knockback scaling (107 → 111).
• Up smash's last hit has a longer hitbox duration (frames 22-23 → 22-25).
• Down smash has less ending lag (FAF 44 → 41).
• Back throw deals more damage (10% → 11%) with no compensation on knockback.
• Confusion has less startup lag (frame 12 → 10) with its total duration reduced as well (FAF 45 → 43).
• Confusion starts reflecting projectiles earlier (frame 12 → 10).

7.0.0

• Overall shield size has been increased by 1.1×.
• Mewtwo's shielding pose has been altered to reduce the possibility of a shield stab.
• Down tilt's hitboxes have altered positions on frame 6 to reach more into the plane of gameplay, preventing it from missing characters completely during certain animations.

Moveset

• Mewtwo possesses a special jump. When jumping in midair, Mewtwo will ascend in a floatier, curved trajectory. The upward momentum of Mewtwo's double jump can be affected through various actions if timed correctly. This trait is shared with Ness and Lucas.
• Mewtwo can wall jump.

For a gallery of Mewtwo's hitboxes, see here.

Note: All numbers are listed as base damage, without the 1v1 multiplier.

		Name	Damage	Description
Neutral attack			4%	Extends its arm to emit a pulse of dark energy. Repeatedly pressing the attack button causes Mewtwo to sway its arm up and down to emit multiple pulses of dark energy before finishing with a dark energy-infused upward swipe. The first hit can jab reset. The infinite's finisher also has decent knockback and can KO at very high percentages near the ledge.
			1% (loop), 2% (last)
Forward tilt			11% (near), 10% (mid), 9% (far)	Mewtwo spins, then swings its tail forward. It is Mewtwo's strongest tilt attack, KOing at around 80% near the ledge. It has long range and can be angled, which makes it a great spacing option.
Up tilt			7% (nearest), 6% (near), 5% (far), 4% (farthest), 5.5% (farthest hitbox to opponents in front of Mewtwo)	Telekinetically backflips to swing its tail in an overhead arcing motion. Its hitboxes launch opponents at favorable angles for comboing into itself, an up smash, neutral aerial, back aerial, or up aerial at low percentages. It can also be used for juggling beginning at medium percentages. It covers a very wide range, hitting opponents near Mewtwo's back, making it a reliable move for catching landings.
Down tilt		Tail Sweep	5% (near), 4.5% (mid), 4% (far)	Crouches and spins around to swing its tail in front of itself. Due to it hitting on frame 6 and having low ending lag, it is Mewtwo's fastest tilt, which allows it to function as a good out of shield option. It is also among Mewtwo's best combo starters, being able to combo into an up tilt, up smash, neutral aerial, forward aerial, and up aerial.
Dash attack			12% (clean sweetspot), 9% (clean sourspot), 6% (late sweetspot), 4% (late sourspot)	A lunging, dark energy-infused palm thrust. Its clean sweetspot deals above average knockback, which can KO at very high percentages (starting at around 140% at the ledge). Depending on the hitbox it hits with and the opponent's damage, it can combo into neutral, forward, and up aerial. Its disjointed hitbox grants it impressive range for a dash attack, which makes it a decent punishment option at certain distances, and potentially difficult for the opponent to punish from a proper distance.
Forward smash		Shadow Blast	20% (blast), 16% (arms)	Quickly cups its hands to its side, and then thrusts them forward to perform a double palm thrust that emits a blast of dark energy. It is Mewtwo's most damaging smash attack, and is an incredibly powerful punish out of a shield break or Disable, KOing at around 65% near the ledge uncharged, and even its sourspot has respectable power. Due to it hitting on frame 19 and having 31 frames of ending lag, however, it is very punishable when whiffed, though it is relatively safe on shield when spaced. It can be angled. It resembles Mewtwo's special move animation from Pokemon Stadium.
Up smash		Galaxy Force	2% (hits 1-3), 10% (hit 4)	Thrusts its arm upward to emit a swirling blast of dark energy. It functions very well as an anti-air attack due to the energy blast itself being a large disjoint that covers above Mewtwo's head, along with boasting multi-hit properties and having a long duration. Due to it hitting on frame 9, it is quite fast for a smash attack of its power, and has the lowest amount of start-up lag out of Mewtwo's smash attacks. However, it has the highest endlag out of Mewtwo's entire moveset at 46 frames, making it very punishable.
Down smash		Shadow Bomb	16%	Extends its arm at a diagonal angle toward the ground to emit a blast of dark energy from its fingertip. It is one of the few down smashes that does not hit on both sides, but it is powerful nonetheless, and has the highest knockback scaling out of Mewtwo's entire moveset. While it has noticeable startup at frame 21, its ending lag relative to its power and startup is extremely low, as Mewtwo can act out of it after 41 frames. As such, it is safe on shield, and potentially even on whiff. It can also 2-frame punish at the ledge if timed correctly. As a result, Mewtwo's down smash is overall a very versatile move in its kit as it provides immense safety and power, and serves as a great punishment out of a successful Disable or shield break.
Neutral aerial		Body Spark	1.6% (hits 1-5), 4% (hit 6)	Discharges electricity around itself with its limbs spread out. With only 7 frames of startup, it is tied with forward aerial for having the lowest startup lag out of Mewtwo's aerials. Its hitboxes are positioned at Mewtwo's hands and feet and keep the opponent trapped, whereas its last hitbox launches them. As a result, it is very useful for disrupting opponents, as Mewtwo has full control over its aerial movement during the attack. Its linking hits can also drag opponents down if fast-falling, which can lead to grounded follow-ups and even gimps. If landed the first hit only on grounded opponents, it can link into forward and up smash for a kill confirm
Forward aerial		Shadow Scratch	13%	A dark energy-infused swipe. Due to it hitting on frame 7, it is tied with neutral aerial for having the lowest amount of start-up lag out of Mewtwo's aerial attacks. When coupled with its respectable damage output and high knockback scaling, it is one of Mewtwo's most viable KOing options. It also boasts combo potential at low percentages, as it can also combo into itself, or be used as a follow-up from down tilt or neutral aerial. Due to its very fast speed, versatility at a wide range of percentages (boasting combo potential and KO potential at low and high percentages, respectively), and decent range, it is a staple in Mewtwo's neutral game and moveset, and it is not uncommon for it to be considered one of the best, if not the best forward aerial in the game.
Back aerial			13% (near), 11% (mid), 9% (far)	Swings its tail behind itself in an upward arc. It covers a very wide area and deals relatively high knockback, making it very potent at edgeguarding, particularly against midair jumps, and allows it to easily wall out opposing approaches. However, it has the second highest amount of start-up lag out of Mewtwo's aerial attacks at frame 13.
Up aerial			12% (near), 11% (mid), 10% (far)	Backflips to swing its tail in an overhead arcing motion, similarly to its up tilt. Its good knockback growth, large range and decent damage output makes it a viable juggling and KOing option. Despite its appearance, it is unable to hit opponents next to Mewtwo, unless if used during a fast-fall near the ground (which can start combos at low percentages).
Down aerial			14% (grounded opponents, aerial sourspot), 15% (aerial sweetspot)	Backflips to perform a dark energy-infused stomp. It is Mewtwo's most damaging aerial attack. It is also a very powerful meteor smash when sweetspotted in the air. Due to it hitting on frame 15, however, it has the highest amount of start-up lag out of Mewtwo's aerials. Despite its aforementioned dark energy visuals appearing right where Mewtwo stomps, it does not have a darkness effect. Its sourspot boasts respectable power and can KO grounded opponents at around 140%. Its moderately low landing lag combined with its diagonal angle also allows it to function as a low to mid-percentage combo starter.
Grab			—	Telekinetically holds an opponent. Mewtwo's grab range and speed are average.
Pummel			1.5%	Releases a pulse of darkness into the opponent.
Forward throw		Shadow Cannon	3% (hit 1), 2% (Shadow Balls)	Telekinetically lifts the opponent diagonally in the air before firing five Shadow Balls at them. It is among the most damaging throws in the game when all hits connect, dealing 13%. However, the Shadow Balls can be reflected if the opponent wears a Franklin Badge, while other nearby opponents with reflectors and/or absorption moves can choose to intercept it, while opponents can also DI to avoid other incoming projectiles at higher percentages.
Back throw			11%	Telekinetically throws the opponent backward. Its high damage and knockback makes it one of the strongest back throws in the game and one of Mewtwo's most viable KOing moves, KOing middleweights at around 95% near the ledge.
Up throw		Psychic Whirlwind	12%	Telekinetically whirls the opponent around itself before launching them upward above its head. This is the strongest up throw in the game, while being difficult to properly DI due to its purely vertical angle. As a result, it is extremely useful for KOing at high percentages if Mewtwo lands a grab, especially on stages with platforms. It KOs middleweights at around 131% from ground level, and at around 100% on Battlefield's top platform.
Down throw			4% (hit 1), 5% (throw)	Telekinetically slams the opponent to the ground, and then somersaults in order to strike them with its tail. It has low knockback and somewhat high ending lag. As a result, it cannot properly combo into most of its moves until very high percentages, though it can be used to punish an opponent's reaction or create 50/50 setups.
Forward roll Back roll Spot dodge Air dodge		—	—
Techs		—	—
Floor attack (front) Floor getups (front)			7%	Telekinetically spins around to swing its tail before getting up.
Floor attack (back) Floor getups (back)			7%	Telekinetically spins around to swing its tail before getting up.
Floor attack (trip) Floor getups (trip)			5%	Performs a dark energy-infused swipe behind itself and then in front of itself while getting up.
Edge attack Edge getups			7%	Swings its tail in front of itself while climbing up.
Neutral special		Shadow Ball	2.5% (uncharged), 25% (fully charged)	Cups its hands to its side and creates a large, blackish violet sphere of dark energy between its hands, then thrusts its hands forward to launch the sphere. It can be fired immediately, which, when coupled with its erratic movement pattern, allows it to function as a pressuring option like Fireball. Conversely, it can be charge-canceled. Although its charge time is quite long, it possesses great KO potential when fully charged. A fully charged Shadow Ball also deals above-average shield damage and possesses transcendent priority, being able to break shields at half health or less. A fully charged Shadow Ball also deals recoil upon being fired; as a result, using it in midair will propel Mewtwo a moderate distance backward, which can help or hinder its recovery depending on which way it faces. Shadow Ball can potentially act as a combo starter at various percentages depending on its charge, notably into moves like dash attack, dash grab, and forward aerial. It can be B-reversed.
Side special		Confusion	1.15% (hits 1-7), 1% (throw), 1.4× (reflected projectiles)	Swipes forward to emit a ripple of psychic energy from its hand. It has impressive utility, courtesy of it functioning as a reflector, a command grab, and even a potential recovery option. As a grab, the ripple spins opponents around and leaves them tumbling at a frame disadvantage dependent on their damage, being able to combo into down tilt and forward aerial at high percents, with the latter being a KO setup. As a recovery option, its first use in midair gives Mewtwo a slight vertical boost, although it halts most of its horizontal momentum.
Up special		Teleport	—	Teleports to a different location. It is completely invulnerable during the move. It has less ending lag if Mewtwo Teleports directly back onto the ground, and it grants Mewtwo some horizontal momentum if ended in midair. A great recovery move due to its aforementioned intangibility as well as travelling a long distance.
Down special		Disable	1%	Emits a minuscule spark of psychic energy from its eyes toward the opponent, stunning them. It only works if the opponent is facing Mewtwo and grounded. If the opponent is in the air, they are slightly launched backward with set knockback, instead of being stunned, which will likely put them into a tech situation and potentially allow another opportunity to land the move. Useful at high percentages to guarantee a KO, but difficult to land. Due to being a projectile, Disable can also be reflected. Disable grants intangibility from frames 10 to 16, allowing it to beat out grounded maneuvers when timed properly, such as dash grabs.
Final Smash		Psystrike	40%	Mega Evolves into Mega Mewtwo Y and performs Psystrike, its signature move in the Pokémon games. Psystrike is a powerful sphere of psychic energy that plows through both opponents and walls, and any opponent caught will be stunned before being launched by an intense, mind-shattering blow. Incredible power, KOing at around 50% from center stage.

On-screen appearance

• Emerges from a large mass of dark energy and then descends onto the ground.

Taunts

• Up Taunt: Folds its arms as it telekinetically spins around on the spot while laughing ominously. Resembles the animation Mewtwo performs while using a physical move in the Pokémon Stadium games.
• Side Taunt: Surrounds itself in a flame-like aura of dark energy, similarly to Lucario's up taunt.
• Down Taunt: After turning to face the screen, it waves its hand in a circular motion in front of itself. It then proceeds to thrust its opposite arm forward while emitting a small spark of dark energy from its palm.

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  Mewtwo's up taunt.

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  Mewtwo's side taunt.

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  Mewtwo's down taunt.

Idle poses

• Crosses its arms and then moves them outward.
• Holds out one hand in front of itself.

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  Mewtwo's first idle pose

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  Mewtwo's second idle pose

Victory poses

• Left: While radiating a dark aura, Mewtwo raises its left hand in front of itself while pulling back its right hand. Mewtwo then thrusts its right hand forward, emitting dark energy sparks from its palm. Mewtwo emits an ominous growl throughout the pose. In Japanese, it says "私は負けるわけにはいかない！", which translates to "I cannot afford to lose!"
• Up: Mewtwo crosses its arms as it turns its back to the screen, and looks back over its shoulder, scoffing. In Japanese, it says "私はなぜ ここにいるのか…？", which translates to "Why am I here...?"
• Right: Does a single spin while levitating, then poses with a dark aura bursting from its body as it laughs. In Japanese, it says "愚かな！", which translates to "Foolish!"

A small excerpt of the title theme of Pokémon Red, Blue, Yellow, and Green Versions, a track which would go on to become the Pokémon main theme and the title theme for the entire series.

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In competitive play

As a result of its nerfs from Smash 4, Mewtwo has not made an impact in Ultimate's early metagame. Most of Mewtwo's playerbase from Smash 4 have dropped the character in favor of other characters, leaving it to have a below average representation. Although Mewtwo has initially received favorable success from SDX, he has since dropped the character.

Game updates slightly addressed some of Mewtwo's biggest flaws, allowing it to gain more attention in the eyes of some players. While Mewtwo is still widely considered to be a low-to-mid tier character, the buffs, as well as decent regional placements by players such as Zenkai, has led some people to believe that the character has untapped potential, and MKLeo began occasionally using Mewtwo in late 2019 to some success. However, this is currently debatable, because Mewtwo's playerbase and results remain small in spite of its perception.

Notable players

Any number following the Smasher name indicates placement on the Fall 2019 PGRU, which recognizes the official top 50 players in the world in Super Smash Bros. Ultimate from July 13th, 2019 to December 15th, 2019.

Active

•  ???? - Placed 1st at Midwest Arcadian, 17th at Holiday Heist 5, and 49th at Frostbite 2020. Ranked 10th on the Michigan Power Rankings
•  Compact - Formerly uses Mewtwo as a main; now uses it as a secondary. Placed 25th at KVOxTSB 2019 and 33rd at Umebura SP using Mewtwo.
•  Grade - The best Mewtwo player in Canada. Placed 7th at The Pinnacle 2018 with both Mewtwo and Wolf, and 17th at Play With Heart with solo Mewtwo. Ranked 13th on the British Columbia Power Rankings.
•  Zenkai - The best Mewtwo player in the United States after SDX dropped the character. Placed 17th at both Tri-state Showdown: Fall 2019 and Overclocked Ultimate IV, 25th at Return to Yoshi's Island, 33rd at Smash at The Paramount, and 49th at Frostbite 2020. Has wins over Ralphie, Protom, Sandstorm, and Magister.

Inactive

•  SDX - The best Mewtwo player in the world prior to his hiatus. Has since dropped the character for Joker. Placed 2nd at No Fun Allowed 3, 9th at Glitch 6, 17th at GENESIS 6, 25th at Let's Make Moves, and 33rd at Frostbite 2019. He has defeated Awestin, Jw, NickC, Gen, Abadango, and NAKAT.
•  WaDi (#20) - Uses Mewtwo as a secondary. Placed 1st at Ultimate at The Cave and 3rd at SwitchFest 2019 Kickoff as one of his characters.

Classic Mode: Psychic Control

Mewtwo's congratulations screen.

Each round, Mewtwo is allied with previous opponents under the notion that its teammates are under its mental control; these teammates typically represent characters that have been brainwashed in their respective home series.

Round	Opponent	Stage	Music	Notes
1	Ness and Lucas	Fourside	Fourside (Melee)
2	Cloud	Midgar	Snowman	Lucas is a CPU ally. His costume is based on his brother Claus when Claus was brainwashed into becoming the Masked Man in Mother 3.
3	Ryu and Ken	Suzaku Castle	Fight On!	Cloud is a CPU ally. Cloud's mind was briefly taken over by Sephiroth in Final Fantasy VII.
4	Richter	Dracula's Castle	Vega Stage	Ken is a CPU ally. Ken's outfit is based on Violent Ken, which was when he was brainwashed by M. Bison in SNK vs. Capcom: SVC Chaos and Ultra Street Fighter II: The Final Challengers.
5	Palutena and Pit	Skyworld	Lament of Innocence	Richter is a CPU ally. Richter was brainwashed by Shaft in Castlevania: Symphony of the Night.
6	Pikachu , Pichu , Jigglypuff , and Lucario	Kalos Pokémon League	Destroyed Skyworld	Pit is a CPU ally. Pit lost control of his body to a corrupted Palutena in Kid Icarus: Uprising.
Bonus Stage
Final	Master Hand and Crazy Hand	Final Destination	Battle! (Lorekeeper Zinnia)	Pikachu is a CPU ally. Pikachu was captured by Mewtwo in Pokémon: The First Movie.

Note: Each round uses a track taken from the series fought in the previous round.

Credits roll after completing Classic Mode. Completing it as Mewtwo has Victory Road - Pokémon Ruby / Pokémon Sapphire accompany the credits.

Role in World of Light

Finding Mewtwo in World of Light

Mewtwo was among the fighters that were summoned to fight the army of Master Hands.

Mewtwo was present when Galeem unleashed his beams of light. Mewtwo and Zelda attempted to reflect the beams using Confusion and Nayru's Love respectively; this effort failed, with both being vaporized and placed under Galeem's imprisonment, along with the rest of the fighters (excluding Kirby).

Mewtwo was one of the many fighters that fell under Dharkon's control upon Galeem's first defeat. It can be found in the Mysterious Dimension sub-area, where its location will be accessed during the quiz segment asking which spirit cannot be inhaled by Kirby (the answer being Whispy Woods).

Fighter Battle

No.	Image	Name	Type	Power	Stage	Music
24		Mewtwo	Grab	12,000	Spear Pillar (Ω form)	Battle! (Dialga/Palkia) / Spear Pillar

Spirits

Mewtwo's Fighter Spirit can be obtained by completing Classic Mode. It is also available periodically for purchase in the shop for 500 coins. Unlocking Mewtwo in World of Light allows the player to preview the first spirit below in the Spirit List under the name "???". As a Fighter Spirit, it cannot be used in Spirit Battles and is purely aesthetic. Each Fighter Spirit has an alternate version that replaces them with their artwork in Ultimate.

Additionally, one of Mewtwo's Mega Evolved forms appears as a Primary Spirit.

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  411. Mewtwo

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  464. Mega Mewtwo Y

In Spirit battles

As the main opponent

Spirit				Battle parameters							Inspiration
No.	Image	Name	Series	Enemy Fighter(s)	Type	Power	Stage	Rules	Conditions	Music	Character
204		ReDead	The Legend of Zelda series	•Mewtwo Team (×4)		2,100	Hyrule Castle (Battlefield form)	N/A	•The enemy has super armor but moves slower •Stamina battle •The enemy favors down specials	Song of Storms
436	File:Abra Spirit.png	Abra	Pokémon series	•Mewtwo		2,000	Saffron City	N/A	•Timed battle •Only certain Pokémon will emerge from Poké Balls (Abra)	Battle! (Wild Pokémon) - Pokémon Sun / Pokémon Moon
464		Mega Mewtwo Y	Pokémon series	•Mewtwo		9,500	Spear Pillar (hazards off)	•Sudden Final Smash	•The enemy will suddenly have a Final Smash	Pokémon Red / Pokémon Blue Medley
465		Mew	Pokémon series	•Mewtwo		13,900	Kongo Jungle	•Invisibility •Hazard: Fog	•The stage is covered in fog •Timed battle •The enemy is invisible after a little while	Pokémon Red / Pokémon Blue Medley
486	File:CelebiSpirit.png	Celebi	Pokémon series	•Mewtwo		13,600	Garden of Hope (Battlefield form)	•Flowery •Hazard: Fog	•The stage is covered in fog •You constantly take minor damage •The enemy heals over time	Pokémon Gold / Pokémon Silver Medley
491		Milotic	Pokémon series	•Mewtwo		4,200	Kalos Pokémon League	•Defense ↑	•Timed battle •The enemy has increased defense •The enemy shields often	Battle! (Wild Pokémon) - Pokémon Ruby / Pokémon Sapphire
502	File:Deoxys Spirit.png	Deoxys (Normal Forme)	Pokémon series	•Mewtwo		13,300	Mario Galaxy (Battlefield form)	•Attack Power ↑	•The enemy has increased attack power •Only certain Pokémon will emerge from Poké Balls (Deoxys)	Battle! (Lorekeeper Zinnia)
508		Uxie, Mesprit, & Azelf	Pokémon series	•Tiny Mewtwo (×3) ()		9,000	Spear Pillar (Battlefield form)	•Health Recovery	•The enemy's special moves have increased power •The enemy is healed when the enemy's at high damage	Battle! (Dialga/Palkia) / Spear Pillar	Uxie (yellow costume), Mesprit (pink costume) and Azelf (blue costume)
510		Palkia	Pokémon series	•Mewtwo		9,400	Spear Pillar	•Hazard: Left Is Right, Right Is Left	•Left and right controls will suddenly reverse after a little while	Battle! (Dialga/Palkia) / Spear Pillar
560		Necrozma	Pokémon series	•Gold Mewtwo		9,400	Spear Pillar	•Giant	•The enemy is giant when the enemy's at high damage •The enemy's special moves have increased power •Stamina battle	Battle! (Elite Four) / Battle! (Solgaleo/Lunala)	Ultra Necrozma
737		Orbulon	WarioWare series	•Mewtwo		3,700	Balloon Fight (Battlefield form)	•Assist Trophy Enemies (Starman)	•Hostile assist trophies will appear •The enemy deals damage when falling •The enemy has increased jump power	WarioWare, Inc.
1,022	File:Inspired.png	Inspired	Bayonetta series	•Mewtwo Team (×4)		1,900	Umbra Clock Tower	N/A	•The enemy's physical attacks have increased power •The enemy starts the battle with a Rocket Belt	One Of A Kind
1,281		Esna	Ever Oasis	•Mewtwo		9,200	Mushroom Kingdom II	•Flowery	•You constantly take minor damage •The enemy's FS Meter charges quickly	Dawn in the Desert
1,400	File:DevilCuphead.jpeg	The Devil (Cuphead)	Cuphead	•Giant Mewtwo		4,000	Castle Siege	•Attack Power ↑ •Assist Trophy Enemies	•Hostile assist trophies will appear after a while •The enemy has increased attack power when the enemy's at high damage •The enemy starts the battle with a Death's Scythe	Flashes of Fear or Floral Fury (with Cuphead DLC)

As a minion

Spirit				Battle parameters							Inspiration
No.	Image	Name	Series	Enemy Fighter(s)	Type	Power	Stage	Rules	Conditions	Music	Character
1,068		Medusa Head	Castlevania series	•Meta Knight •Tiny Mewtwo (x5)		3,600	Dracula's Castle	•Move Speed ↓	•You have reduced move speed after a little while •The enemy falls slowly •Defeat an army of fighters	Starker / Wicked Child	Medusa Head's snakes
1,148		Satoru	Trade & Battle: Card Hero series	•Shulk •Mewtwo •Ridley •Bowser		1,700	Pokémon Stadium 2	•Move Speed ↓	•Defeat the main fighter to win •The enemy's melee weapons have increased power •Reinforcements will appear during the battle	Worthy Rival Battle

Alternate costumes

Gallery

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  Artwork of all playable Pokémon characters and Poké Ball Pokémon, as posted by the official Pokémon Twitter account.

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  Mewtwo's fighter card.

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  Mewtwo idling on Wily Castle.

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  Taunting on Lylat Cruise.

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  Releasing a Shadow Ball on Spirit Train.

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  Taunting with Lucario and Fox on Coliseum.

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  Using Disable on Rosalina on Pokémon Stadium.

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  In its black alternate color with Pikmin on Onett.

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  Battling Pichu on Spear Pillar.

Trivia

• Mewtwo's artwork for Ultimate resembles its artwork for Pokémon FireRed/LeafGreen, albeit with its hands and legs posed slightly differently.
• Mewtwo was confirmed to be a playable character in Ultimate before Pikachu, making this the first time Pikachu was not the first Pokémon to be announced as part of the roster.
• Mewtwo was the last non-DLC character added to the Super Smash Bros. Blog.
  • However, due to Mr. Game & Watch's blog page only being available on the Asian websites until December 7, Mr. Game & Watch was the last character added to the blog on non-Asian websites.
• Mewtwo is the only character who has its victory grunts/laughter omitted from the English Sound Test.
• Mewtwo is one of three characters whose Classic Mode route centers around protagonists and heroes for opponents. The other two who share this attribute are Dark Samus and Ganondorf. All three characters of which face heroes/protagonists from their own series.
  • Similar to Dark Samus, Mewtwo's teammates are based on being possessed to fight other opponents for its Classic Mode route, thus making Mewtwo's route an inverse of Joker's.
• There's currently a positioning glitch when Mewtwo performs an air dodge when facing left. It will be facing away from the screen when disappearing and reappearing.
• Mewtwo is the only character who can stun other fighters in Ultimate without the use of items or breaking shields.
• Mewtwo, Cloud, and the Hero are the only three playable characters to speak in Japanese in at least one version of the game to never speak in English in any version of the game.
  • Out of those three, Mewtwo is the only one who is not a property of Square Enix and is a first-party character.