Priority

The white "bubble" between Kirby and Pikachu's attacks indicates that two hitboxes have collided.

Priority is a property of hitboxes in the Super Smash Bros. series that describes their behavior upon interacting with other hitboxes. While the priority of the hitboxes produced by normal ground attacks follows a set of rules that is dependent upon the amount of damage they deal (the law of high and low priority), different rules apply to those of normal aerial attacks, and certain special moves when performed in the air. Furthermore, some hitboxes and attacks, such as shots from Fox's Blaster, possess a special kind of priority called transcendent priority, which ignores the rules of normal priority.

Priority in the Super Smash Bros. series is not to be confused with the general term "priority" that is used to gauge the relative usefulness of a move with regards to its speed, the size or duration of its hitbox, or any other property it might have (e.g. armor or invincibility around part of or the entire body). The concept of priority also governs how individual hitboxes and objects react, not attacks as a whole. For example, an attack can be cancelled if its only non-transcendent hitbox is outprioritized, regardless of the status of its other transcendent hitboxes. In addition, attacks being cancelled via priority rules is on a per-object basis, meaning that an attack that is outprioritized can still damage other players or objects if it hits at the same time.

Normal priority

Mario's Fireball colliding with Sonic's neutral attack in Super Smash Bros. for Wii U.

Normal priority describes the set of rules that apply to normal attack hitboxes, that is, any attack hitbox that is not classified as transcendent. As such, the majority of standard attacks, aerials, special attacks and projectiles contain hitboxes with normal priority.

Ground attacks and projectiles

The hitboxes of normal ground attacks follow the law of high and low priority. This means that they interact with each other in terms of the damage they deal, which in turn classifies each as having "high" or "low" priority. When two ground attack hitboxes overlap, they will collide, and will either cancel each other out, or one will override (out-prioritize) the other. This collision is signified by a white "bubble", and in Melee, a distinct "ting" sound, as if swords are clanging, is also heard. If two actual swords clash, such as Link and Marth's blades, a more realistic "ting" sound is heard. The law of high and low priority functions in terms of a damage (priority) range of 9%. On these terms, one ground attack must deal 9% or more additional damage than another attack if it is to out-prioritize it, hence, the "priority range" in Smash Bros games is 9% (note that in the original Super Smash Bros., the priority range is instead 10%).

If one attack hitbox is above the priority range of another, that is, deals 9% or more than the other, the stronger hitbox out-prioritizes the weaker one, and the weaker attack is cancelled by the stronger one. However, if two colliding ground attack hitboxes are within the priority range, that is, damage dealt is less than or equal to 9% within each other, they will "clash", and both will cancel out, delivering no damage to either character. Thus, normal attacks with "high" priority are those whose hitboxes deal a large amount of damage, and are therefore more inclined to out-prioritize other attacks, while those with "low" priority deal little damage.

For example:

• In Brawl, if Marth's un-tipped forward smash collides with Ike's f-smash (14% vs. 22%), they will clash and cancel each other out.
• However, if Marth's un-tipped f-smash collides with Ganondorf's f-smash (14% vs. 24%), Ganondorf's f-smash will cancel out (out-prioritise) Marth's f-smash and hit Marth.
• If Captain Falcon's forward smash collides with Ness' up tilt (19% vs. 7%), Captain Falcon's f-smash will out-prioritise Ness' up tilt and hit Ness.
• If Captain Falcon's Falcon Punch collides with Yoshi's Egg Roll (27% vs. 12%), the Falcon Punch will out-prioritise the Egg Roll and hit Yoshi.

The same rules apply when ground attack hitboxes overlap normal projectile hitboxes.

For example:

• Marth's un-tipped f-smash is out-prioritised by Samus' fully charged Charge Shot (14% vs. 25%).
• However, if the second hitbox of Bowser's f-smash collides with Samus' fully charged Charge Shot, they will cancel each other out (23% vs. 25%).

While most normal projectiles follow the rules of ground priority, Snake's Remote Missile, Diddy Kong's Peanut Popgun, and King Dedede's Waddle Dee Toss behave differently. While the 8% range does apply to Dedede's Gordo, its hitbox behaves like an airborne attack as it cannot be cancelled out. For example, if Captain Falcon's f-smash collides with a Gordo (19% vs. 23%), the clash bubble will appear, and the f-smash will be cancelled out while the Gordo is not. However, since both hitboxes are within the priority range, the Gordo will go right through Captain Falcon without harming him, and continue along its natural path. It will, however, still possess its damaging hitboxes, and can still harm any other character it happens to touch along its route.

Snake's Remote Missile has a damagable hitbox and behaves like a thrown item, such as a capsule. Hence, when opposing hitboxes collide with the Remote Missile, they will damage it instead of colliding with it. If the Remote Missile takes enough damage, it will be destroyed. The peanuts from Diddy Kong's Peanut Popgun behave the same way, but any colliding hitbox, even if it only deals 1%, will destroy the peanuts.

Aerial attacks

Different rules apply to the hitboxes of normal aerial attacks. When a normal aerial attack hitbox overlaps that of a normal ground attack or another normal aerial, the attacks cannot collide or clash and the law of high and low priority does not apply. If an overlap between the hitboxes of two such attacks occurs, both will persist, irrespective of each other, and will damage their foes if they contact them.

For example:

• If Sonic's back aerial overlaps Mario's up tilt, neither attack is cancelled, and both characters are hit by each other's attacks.

However, the hitboxes of aerial attacks can collide with normal projectiles, in which case the law of high and low priority functions. However, aerial attack animations cannot be cancelled out, and will continue even if out-prioritised.

For example:

• If Marth's fair collides with Samus' fully charged Charge Shot (10% vs. 25%), his fair will not be cancelled out, but it will fail to cancel out the Charge Shot. As a result, the collision action will occur, but Samus' Charge Shot will out-prioritise the forward aerial and hit Marth.
• However, if Ganondorf's fair collides with Samus' fully charged Charge Shot (17% vs. 25%), his fair will cancel out the Charge Shot and Ganondorf will not be harmed.

Exceptions to Normal Priority

Considered Both Airborne and Grounded

• Meta Knight - Mach Tornado and Drill Rush (both grounded and airborne), glide attack
• Olimar - all Pikmin based attacks
• Zero Suit Samus - neutral air, up smash* (second hitbox only)
• Ness - up smash, down smash
• Fox - Fox Illusion
• Falco - Falco Phantasm

*The second hitbox of Zero Suit Samus' up smash behaves like an aerial. It may be out-prioritised by another character's aerial, but the u-smash's animation and subsequent hitboxes cannot be cancelled.

The hitboxes of the above attacks can collide with the hitboxes of other attacks regardless of if they're ground or aerial attacks. When such a collision occurs, the clash bubble will appear and the outcome will follow the law of high and low priority. However, airborne attacks cannot be cancelled out, including airborne special moves. Thus, while the results of a collision will follow the law of high and low priority, the appearance of such a collision will differ to that of two colliding ground attacks.

If one of the above ground attacks collides with an aerial, or one of the above aerials collides with a ground attack, and the ground attack is below the priority range of the aerial, the ground attack will be cancelled and the airborne attack can damage the wielder of the ground attack. If the two hitboxes are within the priority range, the ground attack will be cancelled out, and, since it is an aerial attack, the animation of the airborne attack will persist. However, the airborne hitbox becomes harmless, and the wielder of the ground attack will not at all be knocked or damaged by the airborne hitbox, regardless of whether it connects or not.

For example:

• If King's Dedede up tilt collides with Meta Knight's glide attack (12% vs. 13%), Dedede's up tilt will be cancelled out, but he will not be harmed, even if the hitbox of Meta Knight's glide attack contacts King Dedede's body.

If the hitbox of a ground attack is above the priority range of a colliding airborne hitbox, both attack animations will persist, but the airborne hitbox will become harmless, while the ground attack is still able to damage. Thus, if the hitbox of the ground attack connects with the body of the character who used the airborne special, this character will take the damage and knockback of the ground attack. A notable example of a special move that can collide with the hitboxes of other attacks while airborne is Meta Knight's Mach Tornado. If performed on the ground (grounded), it can be cancelled out, but if airborne, it cannot be cancelled. Mach Tornado is a multi-hit move that deals 1% per hit during the main portion of the attack.

For example:

• If Captain Falcon's f-tilt collides with a hitbox of Meta Knight's grounded Mach Tornado (10% vs. 1%), the f-tilt will collide with, and cancel out the Mach Tornado.
• If the Mach Tornado is airborne, Captain Falcon's f-tilt can cancel one of its hitboxes, but cannot cancel the hitboxes that follow. Mach Tornado cannot cancel his f-tilt either, because it is too weak (10% vs. 1%). However, unless the hitbox of Captain Falcon's f-tilt connects with Meta Knight's body, the Mach Tornado will continue and can afterwards damage Captain Falcon, despite the fact that his f-tilt out-prioritised it.

Trample

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A property dubbed as trample, some attacks, when colliding with other moves, continue their animations as if they did not collide at all, but both hitboxes still cancel each other out if they are within the 9% range. This can be advantageous for moves with this property that are either multihitting in nature, very fast, or very damaging (which would increase the length of the rebounding animation). However, two moves with the trample property that are used against each other are more prone to trading hits instead of cancelling out their hitboxes. These attacks are as follows:

In Melee

• Falco - Forward smash, Falco Phantasm
• Fox - Forward smash, Fox Illusion

In Smash 4

• Bayonetta - All smash attacks
• Bowser - Forward smash (late), up smash (first hit only)
• Cloud - Climhazzard (regular and Limit version, first hit only), Limit Cross Slash
• Falco - Falco Phantasm
• Fox - Fox Illusion
• Ike - Dash attack (early)
• Jigglypuff - Dash attack
• Little Mac - Neutral combo (all hits), all tilts
• Mewtwo - Neutral attack (infinite)
• Mii Brawler - Shot Put
• Palutena - All tilts
• Zero Suit Samus - Up tilt (both hits)

Objects that do not terminate on hit

A select few attacks in SSB4 will collide with other attacks, but cannot override weaker hitboxes and will always lose a trade, much like a grab. For example, Bayonetta's up smash cannot be used as effectively as other up smashes to hit opponents in the air, as any hitbox that comes into contact with it will render the up smash inert, and if the hitbox is close enough to Bayonetta at the moment of colliding, Bayonetta will also be hit. The overarching pattern among these attacks is that they feature completely disjointed, potentially highly damaging hitboxes in the form of character props (either a projectile or a protrusion from the character themselves) that do not immediately vanish when they hit something. Because they cannot override any hitboxes, these attacks are often perceived as having low priority, and some moveset repositories such as Kurogane Hammer list them as such.

• Bayonetta - All smash attacks (except for first hit of down smash, which is attached to Bayonetta herself)
• Corrin - Forward smash (non-charging portion), Dragon Fang Shot (both the shot and the bite), Dragon Lunge (initial lunge only)
• Olimar - All Pikmin-based attacks
• Villager - Timber (both the sprouting hit and the falling hit)

Transcendent priority

This article or section is incomplete. You can help SmashWiki by expanding or finishing it. The editor who added this tag elaborates: SSB4

Transcendent priority (also known as transcending priority) describes the set of rules that apply to transcendent attack hitboxes, as distinct from normal attack hitboxes. In Smash Bros. games, particular attacks and hitboxes are assigned transcendent priority by the game designers; the property is not inherent of any attack type or character. However, it should be noted that all of Meta Knight's standard attacks, except dash attack and glide attack, are transcendent. Transcendent hitboxes ignore the rules of normal priority: they cannot collide with, clash with, cancel out, or be cancelled out by other hitboxes, even other transcendent hitboxes.

For example:

• Meta Knight's f-smash is transcendent. If a pair of Meta Knights use their f-smash at the same time, and the f-smash hitboxes overlap each other, they will not collide, and their animations and damaging properties will continue until the attack ends naturally. If the two Meta Knights are close enough together, each will be hit by the other's f-smash.
• Lucas' f-smash is transcendent. If Donkey Kong's f-smash overlaps with Lucas' f-smash (20% vs. 15%), Lucas' f-smash will go through Donkey Kong's without colliding. If its hitboxes touch Donkey Kong, he will receive damage and knockback from Lucas' f-smash, while Lucas will be hit by Donkey Kong's f-smash as well since normal hitboxes will go through transcendent hitboxes.

In Melee

The following is a list of character's attacks in Melee that contain hitboxes with transcendent priority.

• Bowser - Fire Breath, Koopa Klaw (the attack hitbox, not the grab)
• Donkey Kong - Hand Slap
• Dr. Mario - Super Sheet, Dr. Tornado (all hitboxes but the final hit)
• Falco - Blaster
• Fox - Blaster, Fox Illusion (only when airborne; grounded Illusion is not transcendent)
• Ice Climbers - Blizzard
• Kirby - Hammer (grounded only), Final Cutter (projectile only), dash attack
• Link - Spin Attack, zair
• Mario - Cape, Mario Tornado, forward smash (sweetspot only)
• Marth - Shield Breaker, Dancing Blade, Dolphin Slash
• Mewtwo - Disable, forward smash (sweetspot only), down smash
• Ness - PK Flash, PK Thunder (projectile only), dash attack
• Pichu - Thunder, forward smash
• Pikachu - Thunder, forward smash, down smash
• Roy - Flare Blade, Blazer
• Samus - Zair
• Young Link - Spin Attack (airborne only), zair
• Zelda - Nayru's Love, Din's Fire, Neutral attack, forward tilt, up tilt, dash attack, forward smash, down smash, neutral air, forward air, back air, up air,

In Brawl

The following is a list of character's attacks in Brawl that contain hitboxes with transcendent priority. Note that while there are standard aerials with transcendent priority, this only comes into effect if they collide with a projectile or one of the few attacks containing hitboxes that can collide with airborne attacks such as the Mach Tornado. This is because the hitboxes of aerials cannot collide with the hitboxes of standard ground attacks and other aerial attacks.

• Charizard - Up smash
• Diddy Kong - Dash attack
• Falco - Blaster, Reflector
• Fox - Blaster
• Ganondorf - Down air
• Ice Climbers - Squall Hammer, Blizzard
• Ike - Eruption, Aether (all but the initial hitbox), up smash, down smash, all aerials
• Ivysaur - Bullet Seed, neutral attack
• King Dedede - Jet Hammer, Super Dedede Jump, all smashes, neutral air
• Kirby - Hammer (both grounded and airborne), Final Cutter (both the sword strike and projectile)
• Link - Spin Attack (only initial hitbox)
• Lucario - Force Palm (the projectile portion), forward smash (sweetspot only)
• Lucas - PK Freeze, PSI Magnet, forward smash, down smash, neutral air, back air (sweetspot only)
• Mario - Cape, forward smash (sweetspot only)
• Marth - Shield Breaker, Dancing Blade, Dolphin Slash
• Meta Knight - Dimensional Cape, Shuttle Loop, all standard attacks except dash attack, glide attack, and floor attack (trip)
• Mr. Game & Watch - Chef (frying pan only, not the projectiles)
• Ness - PK Flash, dash attack
• Peach - Up smash (sourspot only), Up tilt
• Olimar - Down smash (sweetspot only)
• Pikachu - Thunder, neutral attack, down smash, forward smash (sweetspot only)
• R.O.B. - Robo Beam, Arm Rotor
• Sheik - Needle Storm, Chain, Vanish
• Snake - Forward smash
• Squirtle - Up smash
• Sonic - Neutral air
• Toon Link - Spin Attack
• Wario - Wario Waft, down air (final hit only), Forward Smash
• Wolf - Blaster
• Zelda - Nayru's Love, Farore's Wind, neutral attack, forward tilt, up tilt, dash attack, forward smash, up smash (all but the final hitbox), neutral air, up air
• Zero Suit Samus - Dash attack, down smash

In SSB4

• Bayonetta - Heel Slide and After Burner Kick, Bullet Arts from all moves
• Captain Falcon - Falcon Punch
• Cloud - Blade Beam (Limit Break version only)
• Falco - Blaster, Reflector
• Fox - Blaster
• Ganondorf - Down aerial
• Ike - Aether
• Kirby - Hammer, Final Cutter (both sword strike and projectile)
• Lucina - Shield Breaker, Dancing Blade, Dolphin Slash
• Marth - Shield Breaker, Dancing Blade, Dolphin Slash
• Mii Gunner - Forward aerial
• Palutena - All smash attacks, down aerial
• Pikachu - Up smash (sourspot only), forward smash, down smash
• Roy - Double-Edge Dance, Flare Blade
• R.O.B - Robo Beam, Arm Rotor
• Sheik - Needle Storm, Vanish, Bouncing Fish
• Shulk - Up smash
• Zelda - Nayru's Love, Farore's Wind, neutral attack, dash attack, forward tilt, up tilt, forward smash, up smash (all hits except for final hitbox), neutral aerial, up aerial, forward aerial (sweetspot only), back aerial (sweestpot only), down aerial (sourspot only)

Gallery

• 

  Marth's f-smash about to collide with Ike's f-smash.

• 

  Since both colliding hitboxes are within the priority range, they clash and cancel each other out.

• 

  Marth's f-smash about to collide with Ganondorf's f-smash.

• 

  Since the hitbox of Ganondorf's f-smash is above the priority range of the hitbox of Marth's un-tipped f-smash, Marth's f-smash is cancelled out.

• 

  Captain Falcon's f-smash about to collide with Ness' up tilt.

• 

  Since the hitbox of Captain Falcon's f-smash is above the priority range of the hitbox of Ness' up tilt, Ness' up tilt is cancelled out.

• 

  Bowser's f-smash about to collide with Samus' fully charged Charge Shot.

• 

  Since the second hitbox of Bowser's f-smash is within the priority range of Samus' fully charged Charge Shot, they clash, and each is cancelled out.

• 

  Captain Falcon's f-tilt about to collide with a grounded Mach Tornado.

• 

  Since the hitbox of Captain Falcon's f-tilt is above the priority range of Mach Tornado (excluding the final hit), Mach Tornado is cancelled out.

• 

  Captain Falcon's f-tilt collides with an airborne Mach Tornado.

• 

  Since attacks that are airborne cannot be cancelled out, neither attack is cancelled out and both continue to progress through their entire attack duration.

Trivia

• In Melee uniquely, realistic dinging sounds can be heard when swords, Parasols, Mewtwo's tail, Peach's heels, or Bowser's claws clang with each other.