Landing lag glitch

The landing lag glitch, also referred to as recovery carryover lag or RCO lag, is a glitch in Super Smash Bros. Brawl, Super Smash Bros. 4 and Super Smash Bros. Ultimate that causes certain special moves (usually ones that place the user into a helpless state) to have their landing lag carried over into a normal landing animation the next time they land. If the user grabs a ledge (in Brawl only) or gets hit after using a given move (in all games), once they land on the ground, they suffer much greater landing lag than what they would normally get (usually the same amount they would have gotten if they landed in a helpless state).

In Super Smash Bros. Brawl

In Super Smash Bros. Brawl, the glitch is activated by using specific special moves and the glitch will occur the next time the player goes into a normal or aerial landing animation. Most moves which are affected by the glitch are ones which put an opponent into a helpless although not all moves which cause helplessness cause the glitch and there are a couple of moves which trigger the glitch despite not putting the opponent in a helpless state (such as Kirby’s Hammer and Stone).

Captain Falcon and Ganondorf also remain affected by RCO lag after they connect with Falcon Dive or Dark Dive respectively.

The only way a player can avoid the glitch is by landing using a special move with a landing animation although this is rather risky in most cases. The glitch can be mitigated by using the landing lag from an aerial to override the RCO lag, though with 35-40% more landing lag than would usually get for landing with that aerial (for example, an aerial with 9 frames of landing lag will have 13 frames of landing lag with RCO lag). The player has to land while the aerial has landing lag. If the player auto-cancels the aerial, they will get RCO lag. Preferably, one would use an aerial with lag to partially override the glitch, but still suffer more lag than the aerial would normally provide. Naturally, a player will want to use an aerial with lower landing lag as the landing lag will not be as increased as much for an aerial with lower landing lag.

As there is no definitive way to override RCO lag (outside of landing with special moves), it is overall quite exploitable. It can make it considerably more difficult for characters who suffer from the glitch to get off the ledge safely, or to land. Additionally, a slew of additional, normally impossible followups can be performed against characters with RCO, especially against fast fallers. This can be setup with a move with weak vertical knockback, a move with horizontal knockback that lifts the opponent off the ground (but does not put the opponent into tumble), a meteor smash against an aerial opponent that does not put the opponent into tumble, a multi hit with drag down properties, a throw or an aerial grab release. With the exception of an aerial grab release in certain cases, these setups will put the opponent into their hard landing lag, allowing the player to set up a powerful punish. For example, the first hit of Falco's neutral attack normally lacks any guaranteed followups on its own but if the opponent has RCO, it can lead into a bunch of different moves, including a guaranteed forward smash if the opponent has enough RCO lag.

Characters affected by the glitch

Except for Donkey Kong and Bowser, who get no additional landing lag from a soft landing, all characters listed have 15 frames for soft landing. Hard landing values are listed below. Donkey Kong and Bowser additionally get no extra landing lag from their aerials.

• Mario (30 frames with Super Jump Punch)
• Luigi (30 frames with Super Jump Punch)
• Peach (30 frames with Peach Parasol if she closes her umbrella once; it does not go away if the player reopens it)
• Marth (35 frames with Dolphin Slash)
• Donkey Kong (7 frames with Spinning Kong)
• Bowser (10 frames with Whirling Fortress)
• Fox (19 frames with Fire Fox and 25 frames with Fox Illusion)
• Falco (19 frames with Fire Bird and 20 frames with Falco Phantasm)
• Kirby (25 frames - only with Hammer and Stone, not Final Cutter)
• Wolf (36 frames with Fire Wolf and 25 frames with Wolf Flash)
• Charizard (30 frames with Fly)
• Squirtle (30 frames with Waterfall)
• Pikachu (24 frames with Quick Attack - only when it moves the full distance in one direction or is used in two directions)
• Lucario (5 frames with ExtremeSpeed if it wasn't during its helpless animation, 30 frames if it was)
• Captain Falcon (30 frames with Falcon Dive and 20 frames with Raptor Boost)
• Ganondorf (30 frames with Dark Dive and 20 frames with Flame Choke)

In Super Smash Bros. 4

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Characters affected in Smash 4 (note: Ryu is also affected by the glitch, but it only occurs to him whenever he enters his helpless state of Shoryuken and not during the post-move descent)

In Super Smash Bros. 4, the glitch no longer occurs after grabbing a ledge (with grabbing the edge flat out eliminating the glitch if it is active), which makes the glitch less prevalent and detrimental than in Brawl. The glitch also no longer occurs after a grab (with the exception of Yoshi's grab), which makes grabs less fatal against an opponent with RCO. The glitch does still occur if a player is hit out of their special moves however and multiple newcomers suffer from the glitch, in addition to many returning characters who already suffered from it. Because the glitch now only occurs when the player gets hit, the player will always go into their hard landing lag animation, unless they use a special move to land/carryover the RCO and then jump to get their soft landing (which will give them soft RCO lag). Any aerial used in an attempt to override the RCO lag will also experience increased landing lag, like in Brawl.

While it is still possible to exploit RCO lag, there are overall far less opportunities to do so, as there are ways to override the glitch. Horizontal and vertical launching moves can rarely be utilised, as opponents with RCO will rarely be grounded. Grab setups are no longer possible for almost the entire cast. Meteor smashes and multi hitting drag down moves like Mewtwo's neutral aerial however can still be utilised to lead into a guaranteed RCO hard landing for addition followups.

In Super Smash Bros. Ultimate

In Super Smash Bros. Ultimate, RCO lag has been removed for most special moves, making it even less common than in the previous game. However, there are still a few special moves which still suffer from the glitch (including Dolphin Slash, Blazer, Extreme Speed and Drill Rush) and for these few moves which still have RCO lag, the glitch functions like it did in the previous game although aerials no longer have extra landing lag.

External links

• Video showing the glitch
• Thread explaining the glitch