Super Smash Bros. series

One-hit KO

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The editor who added this tag elaborates: Needs some more info from Ultimate
This article is about attacks with enough knockback to KO in one hit. For KOs that occur instantly and bypass all knockback, see Instant KO.
For the smasher OHKO, see Okoru.

A one-hit KO, commonly abbreviated as OHKO (also referred to as an Instant KO in Melee), is an attack in the Super Smash Bros. games with such high base knockback that it KOs an opponent at 0%. Such attacks currently exist in every installment of the series. However, moves with the potential to OHKO are not necessarily guaranteed to do so, and may fail to OHKO under the following circumstances:

  • The opponent techs, DIs, utilizes momentum cancelling, and/or crouch cancels to reduce the knockback or alter the trajectory of the attack.
  • The opponent is flung into a wall, which absorbs enough knockback to prevent the OHKO.
  • Knockback may be insufficient to KO at 0% on very large stages (e.g. Temple, New Pork City, and 75m), or from the far edge of a stage.
  • Knockback may be insufficient to KO at 0% if the attack had already been landed previously (due to stale-move negation).
  • Knockback may be insufficient to KO heavy characters at 0%.
  • Opponents are under an effect that makes them more resilient (such as being giant, metal, or in an event that reduces the knockback they sustain), or the player is weakened (such as being tiny or given a lower handicap).
  • The launch rate is lower than standard, reducing knockback.

The general rule for a move to be considered a one-hit KO is being able to KO an average-weight character, such as Mario, at 0% damage from the center of Final Destination under standard conditions as mentioned above. Another common standard is to compare the move's knockback to the smash attack of the Home-Run Bat, one of the few moves intended to be the quintessential OHKO by the developers.

Moves or hazards that inflict no knockback are not considered to meet the definition of one-"hit" KO's; for example, being flown off the screen by the Landmaster or eaten by the Summit's Fish or Distant Planet's Bulborb are not listed below.

In Super Smash Bros.

Moves that KO'd at 0% were almost nonexistent in the original Smash. In fact, aside from the Home-Run Bat, only one move in the game is able to OHKO, under uncommon conditions:

Items

  • A smash attack with the Home-Run Bat.
  • If Fox uses Reflector on a walking Bob-omb, he (as well as any character caught in the blast radius) will be OHKO'd.
  • If 2 Foxes use Reflector on a Green Shell, it will eventually gain OHKO power after 3-4 reflects.

In Super Smash Bros. Melee

Unlike in Smash 64, there are multiple moves that can OHKO in Melee. They still remain rare however.

Playable characters' moves

  • Roy's fully charged Flare Blade.
  • Mr. Game & Watch's fully loaded Oil Panic after absorbing three strong projectiles (such as three PK Flashes).
  • Roy's Counter upon countering an extremely powerful attack; a hitbox that deals around 35% damage will result in an OHKO if countered (such as a smash thrown Bob-omb).

Items/Enemies

Stage hazards

  • Banzai Bill's explosion on Princess Peach's Castle (if all hits connect).
  • In Flat Zone, if a falling tool is launched at enough speed (after either being hit by an extremely powerful attack such as a Home-Run Bat swing, or being launched after receiving enough damage), it will OHKO anyone it slams into.

In Super Smash Bros. Brawl

Brawl continued the trend of adding several OHKOs into the game, resulting in a great number of them (especially in The Subspace Emissary. However, the majority are Final Smashes, items, stage hazards, enemy and boss attacks, with very few being standard moves of playable characters. In higher difficulties of The Subspace Emissary (mostly Very Hard or Intense), several enemy attacks are OHKO, as well as many boss attacks. Also, most of Tabuu's moves are guaranteed OHKO, some of them even in the higher difficulties of Boss Battle.

Playable characters' standard moves

  • Ike's stage 8 Eruption (stage 7 Eruption can't be classified this way - though it can OHKO light characters when reversed, in midair or in particular situations, it usually KOs Mario at 8%). If Ike gets absorbed by Kirby, the latter's stage 8 Eruption normally loses its OHKO power (except when reversed or used in midair).
  • Mr. Game & Watch's fully loaded Oil Panic after absorbing three strong projectiles (such as PK Flash).
  • Ganondorf's reverse or midair Warlock Punch.
  • Ivysaur's up smash is the most powerful in the game, and can OHKO every character in the lower difficulties of Classic and All Star mode (Easy and Normal only, or Hard in a few particular situations; however, it usually KOs characters starting from 18% in normal Brawls, with some notable exceptions).
  • Jigglypuff’s Rollout and Rest may OHKO very light characters in some situations, but only when perfectly framed and activated while in contact with the opponent. Also, Rollout needs to hit the opponent throughout its path, from the beginning to the end, to gain its full power. These moves are a guaranteed OHKO for every character in the lower difficulties of Classic and All Star mode (Easy and Normal only, or Hard in a few particular situations).
  • Pikachu’s Thunder if the enemy is near to the upper lines or in stages with an high platform, such as 75 m, Spear Pillar or Onett.
  • The following counterattacks:
    • Ike's Counter upon countering an extremely powerful attack (a hitbox that deals at least ~45% damage).
    • Marth's Counter upon countering an even more powerful attack (a hitbox that deals at least ~50% damage).
  • Self-destruct
    • If Jigglypuff’s Shield is kept for too much time or broken by an attack, Jigglypuff shall suffer a self-OKHO, being launched with massive vertical knockback (but wuthout any damage).


Contrary to common belief, Mr. Game & Watch's Judge #9 is not an OHKO, having very high knockback but not quite enough to qualify under the required conditions (although it may OHKO very light characters in particular situations, it usually KOs Jigglypuff at 10%). Also, Bowser’s Koopa Claw should be an invariable OHKO if used in midair, but it is classified in a special category: Sacrificial KO.

Final Smashes

Giga Bowser’s Koopa Claw should be an invariable OHKO if used in midair, but it is classified in a special category: Sacrificial KO.

Items

  • The Dragoon.
  • A smash attack with the Home-Run Bat.
  • Touching Moltres, except for the lower body (even on Giant characters). If a character touches Moltres’ lower body, he is inflicted a meteor smash with OHKO power. If the character is meteor smashed where Moltres is still above him, he will suffer up to 160% damage before being KOed. Same as Melee.
  • Getting caught in Lugia's Aeroblast (even for Giant characters), unless the character is hit at the left or right endpoint of the attack. Touching Lugia's body also gives massive knockback, but normally insufficient to OHKO like Moltres. Same as Melee.
  • Suicune's Aurora Beam (even for Giant characters). This attack instantly Template:Freezing and OHKOs every character caught within it's range (similar to Articuno's Sheer Cold but even more powerful and long-ranged).
  • Deoxys's Hyper Beam (even for Giant characters), both the single initial blast and the following multi-hitting blast.
  • Electrode's explosion or after being smash thrown.
  • A trown Bonsly.
  • Knuckle Joe's Vulcan Jab to Rising Break attack.
  • If Wario runs over a buried Pitfall while riding on his Wario Bike, he will be sent flying at OHKO power.
  • If a Pitfall is thrown on a flying character, he will be meteor smashed with an OHKO potential if he is midair.
  • A full charged Hothead is an OHKO for every character caught in its path. It is reached during the last seconds only, when the sphere sparkles and glows, or with the following method.
  • If an uncharged Hothead is hit by a fire-based hitbox that deals over 30% damage (such as Ike's stage 7-9 Eruption), it will OHKO both when smash thrown and when traversing the stage. Any sparks it gives off while traversing the stage at this strength will also OHKO any character (like the description above but during the whole time, and not only the last seconds).
  • If a Soccer Ball is launched at enough speed (after either being hit by an extremely powerful attack such as forward smash, a Home Run bat swing, or being launched after receiving enough damage), it will OHKO anyone it slams into.

Stage hazards

  • Touching or being bitten by the Ultimate Chimera in New Pork City (even for Giant characters). It is the most powerful attack in all the Smash games along with Tabuu’s Off Waves, both for knockback (being able to OHKO even Template:Metal Box characters in some situations) and damage (an incredible 100% or 200%).
  • Dialga's Roar of Time and Palkia's Spacial Rend in Spear Pillar (even for Giant characters) if most hits connect, both the vertical and the horizontal beams.
  • Dialga's Overheat in Spear Pillar (even on Giant characters). The attack deals from 70% to 100% damage and immense knockback; in some cases it may OHKO even Template:Metal Box characters, due to the fact that Dialga is on an high platform, near to the upper lines. Also, simply touching Dialga's body inflicts massive knockback and damage (as for Palkia and Cresselia), but becomes an invariable OKHO when Dialga is using Overheat, not so different from being hit by the attack itself.
  • When Cresselia, Dialga and Palkia revert the stage in Spear Pillar, characters who are midair or near the upper lines shall be OHKOed.
  • The explosion of the Bridge of Elvin’s bomb (even for Giant characters). It deals enormous knockback and immense damage (100%) to all the characters within its range.
  • Touching the hull of the Pirate Ship.
  • The first and the fourth spike on Rumble Falls (can easily be teched).

Despite KOing at any percentual, the fish in Summit is not an OHKO, but an instant KO, since the player is swallowed and not hit in the classical meaning. The same applies to the river’s current in Jungle Japes, the ships in Big Blue and the moving screen in Rainbow Cruise, which all lead characters beyond the bottom lines, KOing them regardless of damage.

The Subspace Emissary’s hazards

Enemies


Bosses

  • Tabuu's Off Waves on Normal or higher difficulties in The Subspace Emissary, or on Very Hard and Intense difficulties in Boss Battles Mode.
  • Tabuu's Golden Bracket, Chain of Light and Dragon Laser attacks on Intense difficulty in the SSE.
  • Galleom's attack when he stiffens and falls on the player on Intense difficulty in the SSE.
  • Galleom's tornado spin on Intense difficulty in the SSE (if most hits connect).

Video

The following video demonstrates all the moves and hazards that KO at 0% in Brawl:

In Super Smash Bros. 4

Like Brawl, SSB4 continues to add OHKOs to the game.

Playable characters' standard moves

Contrary to its name and intention, Little Mac's KO Uppercut does not KO until above about 30% damage. At 0%, it falls short of the necessary amount of knockback, even to a character as light as Jigglypuff, KOing it only at 12%.

  • Self-destruct
    • If Jigglypuff’s Shield is kept for too much time or broken by an attack, Jigglypuff shall suffer a self-OKHO, being launched with massive vertical knockback (but without any damage).

Playable characters' moves [with Rage applied]

While the following moves do not, under normal circumstances, guarantee an OHKO state, with Rage they can perform an OHKO:

Final Smashes

Items/Enemies

  • The Daybreak's sweet spot.
  • The Dragoon.
  • A smash attack with the Home-Run Bat.
  • Electrode's explosion after being smash thrown.
  • If the Hothead is powered up significantly (30% total or higher), it will gain OHKO power.
  • If a Soccer Ball is launched at enough speed (after either being hit by an extremely powerful attack such as a Home-Run Bat, or being launched after receiving enough damage), it will OHKO anyone it slams into.
  • Smash attacks when boosted by the Black Knight item from Smash Tour.

The Beetle and Boss Galaga items can carry players past the upper blast line, but as they inflict no knockback they are not one-"hit" KOs and both can be escaped by button mashing.

Stage hazards

  • Touching the hull of the boat on Wuhu Island.
  • Touching the hull of the Pirate Ship.
  • Odin's Zantetsuken attack on the Midgar stage (top platform only).

Other

While it isn't accessible in regular battles, the bomb used in the Target Blast stage apparently has more than enough power to OHKO under normal conditions.

Bosses

  • Master Core's final attack if the player does not defeat it in time (about 45 seconds).

In Super Smash Bros. Ultimate

Like SSB4, Ultimate continues to add OHKOs to the game.

Playable characters' moves


Playable characters' moves [with Rage applied]

Final Smashes

Items/Enemies

Stage hazards

Bosses

  • Galeem's Lens Flare with weaker or no spirits.

Other

While inaccessible in a regular fashion without hacking, the gun found on the Free the Spirit screen's stage is programmed in as its own usable item, inflicting 25% damage with OHKO power. This situation is similar to Smash 4's Target Blast bomb.

Video

The following video demonstrates several of the moves and hazards in Ultimate that inflict enough knockback to KO at 0%, alongside some powerful moves that don't. However, it also includes a few moves and hazards that do not inflict any knockback:

References

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