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.

In general, a move is considered a one-hit KO if:

  • It is capable of KOing Mario at 0% through sheer knockback alone from the middle of the respective game's Final Destination.
  • It is not a meteor smash unless the hitboxes are also capable of OHKOing onstage (meteor smashes like those Beast Ganon are therefore OHKOs, while Luigi's down taunt is not).
  • It deals damage and/or does not cause a KO by forcibly re-positioning the opponent (such as push effects and dragging Final Smashes. There are some exceptions, such as Jigglypuff's Puff Up in Brawl which has both sheer OHKO power and an extreme push effect, and Samus' Zero Laser in the same game, which has dragging hits before the final hit).
  • It is not extremely situational (such as the first hit of Roy's Blazer against Jigglypuff in Melee, or Jigglypuff's uncommonly high shield jump).

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 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.

List of One-Hit KOs

This page lists the moves that can OHKO within the rules mentioned above.

Certain moves and situations are not considered to meet the definition of one-"hit" KO's:

Some stage hazards or enemies are capable of OHKOing on their respective stages, and will be 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 (sweetspot).
  • 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 (sweetspot); 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

  • Corneria’s laser beams.
  • Banzai Bill's explosion on Princess Peach's Castle (if all hits connect).
  • On 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.

Bosses

The following will usually cause a OHKO on Very Hard difficulty only:

Video

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

In Super Smash Bros. Brawl

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

Playable characters' standard moves

  • Ike's stage 8 Eruption. If Ike gets inhaled by Kirby, the latter's stage 8 Eruption 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) or a very strong one.
  • The following counterattacks:
    • Ike's Counter (sword and body hitboxes) upon countering a hitbox that deals at least ~40% damage.
    • Marth's Counter (sword and body hitboxes) upon countering a hitbox that deals at least ~45% 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.

Final Smashes

Items

  • The Dragoon.
  • A smash attack with the Home-Run Bat.
  • Touching Moltres.
  • Lugia's Aeroblast. Touching Lugia’s body can also lead to a OHKO if multiple hits chain.
  • Articuno’s Sheer Cold (sweetspot).
  • Suicune's Aurora Beam. The beam will not freeze at 0%, but still deals more than enough knockback to invariably OHKO.
  • Deoxys's Hyper Beam or touching Deoxys, both the initial hit and the following multi-hitting laser.
  • A thrown Bonsly (sweetspot).
  • Electrode's Explosion or after being smash thrown.
  • Wobbuffet’s Counter when countering a OHKO attack or an hitbox that deals at least ~35% damage.
  • Knuckle Joe's Vulcan Jab to Rising Break attack.
  • Dr. Wright’s highest skyscraper.
  • Lyn’s slash (sweetspot).
  • Five Smart Bombs, Bob-ombs or Blast Boxs exploding at the same time.
  • 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.
  • When an Hothead reaches its full power for the last seconds (emitting sparks), any contact will be a OHKO. If an uncharged Hothead is hit by a flame-based hitbox that deals over 30% damage (such as Ike's stage 7-9 Eruption), it will OHKO when smash thrown. Any sparks it gives off while traversing the stage at this strength will also OHKO.
  • 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

The Subspace Army (enemies and clones)

The following will usually cause a OHKO on Intense difficulty only:

The following will cause a OHKO on both Very Hard and Intense difficulties:

  • Armank's main attack.
  • Autolance's slash.
  • Touching a Bombed.
  • Floow's mind attack (if most hits connect or at full health).
  • Giant Bytan's full power charge (at low health).
  • Greap's axe.
  • Every Nagagog's martial attack (at low health or the last form).
  • Roader's charge.
  • Every Shaydas' double slash.
  • Touching Jyk (all the three forms).

The following will cause a OHKO on Normal or higher difficulties:

The following will cause a OHKO on every difficulty:

  • Multiple Floows' combined mind attack (together, if most hits connect or at full health).
  • Scope Primid's most powerful projectile.

Touching a Trowlon on every difficulty is not a OHKO in conventional terms, since it simply carries the player beyond the top blast line, KOing regardless of damage.

Many other enemies and several Shadow Clones are also capable of OHKOs.

The Subspace Army (bosses)

The following will usually cause a OHKO on Intense difficulty only:

  • Rayquaza's Blast at low health (25%).
  • Rayquaza's Lightning Strike if most hits connect or at low health (25%).
  • Porky Minch's Lightning (if most hits connect).
  • Ridley's Background Ram (sweetspot).
  • Ridley’s Slamming Rush.
  • Duon's Jump Crash.
  • Duon's Vacuum Spin (if most hits connect).
  • Galleom's Shockwave (first hit only).
  • Galleom's Uppercut.
  • Tabuu's Explosive Teleport (randomly).
  • Tabuu's Rapid Chop if most hits connect (final slash only).
  • Touching Tabuu through Electrical Shield.
  • Tabuu's Shark Blade.

The following will cause a OHKO on both Very Hard and Intense difficulties:

The following will cause a OHKO on Hard or higher difficulties:

  • Tabuu's Golden Bracket. Due to perfectly horizontal knockback, this attack is a guaranteed OHKO for poor recovery characters even on Easy difficulty.
  • Tabuu's Dragon Laser.
  • Tabuu's Chain of Light. When two players fight, Tabuu will attempt to smash them together with the Chain, resulting in a potential double OHKO.

The following will cause a OHKO on Normal or higher difficulties:

The following will cause a OHKO on every difficulty:

Meta Ridley's Falcon Flyer Pull on every difficulty is not a OHKO in conventional terms, since it simply pulls the player beyond the bottom blast line, KOing regardless of damage. The only way to survive it is jumping.

Other bosses' attacks are also capable of OHKOs.

Classic Mode (bosses)

The following will usually cause a OHKO on Intense difficulty only:

Boss Battle (bosses)

The following will usually cause a OHKO on Intense difficulty only:

  • Duon's Sword Blast (sweetspot; the hit itself, not the shockwave).
  • Meta Ridley’s Mega Fire Ball (sweetspot).
  • Galleom's Tank Rush and Slam (sweetspot; only used by Tank Galleom at very low health).
  • Galleom's Falling Body Slam (sweetspot).
  • Galleom's Tornado Spin (if most hits connect).
  • Tabuu's Chain of Light. When two players fight, Tabuu will attempt to smash them together with the Chain, resulting in a potential double OHKO.
  • Tabuu's Pinpoint Explosion.
  • Tabuu's Bullet Rain (second attack).
  • Touching Tabuu through Electrical Shield (sweetspot).
  • Tabuu's Shark Blade (sweetspot).

The following will cause a OHKO on both Very Hard and Intense difficulties:

The following will cause a OHKO on Hard or higher difficulties:

The following will cause a OHKO on every difficulty:

Meta Ridley's Falcon Flyer Pull on every difficulty is not a OHKO in conventional terms, since it simply pulls the player beyond the bottom blast line, KOing regardless of damage. The only way to survive it is jumping.

Other bosses' attacks are also capable of OHKOs.

Video

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

This video shows some other OHKOs, including more boss attacks.

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%.

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 (sweetspot).
  • The Dragoon.
  • A smash attack with the Home-Run Bat.
  • Electrode's explosion after being smash thrown.
  • If the Hothead is powered up significantly by a flame-based hitbox (30% total or higher), it will gain OHKO power. Unlike Brawl, Hotheads don't reach full OHKO power automatically for the last seconds.
  • 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, which occasionally turns smash attacks into OHKOs.

The Beetle and Boss Galaga items can carry players past the upper blast line, but as they inflict no knockback they are not considered one-hit KOs. Both can also be easily escaped by button mashing at 0%.

Stage hazards

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 Waves if the player does not defeat it in time (about 45 seconds).
  • Master Core’s final explosion after unleashing the Waves (sweetspot). However, it can never truly defeat the players as they have already won by the time the hitbox lands.

In Super Smash Bros. Ultimate

Like SSB4, Ultimate continues to add OHKOs to the game. Several characters also gain the ability to instant KO through Final Smashes or special moves; these do not count as OHKOs and belong in its respective page.

Playable characters' moves

Playable characters' moves (with Rage applied)

Hero's Whack with Thwack are actually instant KOs despite them commonly (and incorrectly) being considered one-hit KOs, as they KO opponents regardless of position. This also applies to any Final Smash that ends with opponents bursting on the spot in a colorful explosion.

Final Smashes

Items/Enemies

  • A smash attack with the Home-Run Bat.
  • Electrode's explosion when smash thrown.
  • The Dragoon.
  • The Daybreak's sweet spot.
  • If the Hothead is powered up significantly by a flame-based hitbox (30% total or higher), it will gain OHKO power. Unlike Brawl, Hotheads don't reach full OHKO power automatically for the last seconds.

Stage hazards

Bosses

  • Galeem's Lens Flare with weaker or no spirits (sweetspot; not guaranteed).

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

Several OHKOs from every game: https://m.youtube.com/watch?v=y6_g2_FvFdA

Some Final Smashes in Brawl: https://m.youtube.com/watch?v=M1NebBaQ8ow

Some Poké Balls in Melee: https://m.youtube.com/watch?v=gx_wE6R8L_E

Some Poké Balls in Brawl: https://m.youtube.com/watch?v=pNOnc_7cRqE

Other Poké Balls in Brawl: https://m.youtube.com/watch?v=-2TZyw8-oRE

Some Assist Trophies in Brawl: https://m.youtube.com/watch?v=eJBhgB8-_qI

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