Bike duplication glitch: Difference between revisions

The '''bike duplication glitch''' is a glitch in ''[[Super Smash Bros. Brawl]]'' that causes {{SSBB|Wario}} to drop two of [[Wario Bike|his bikes]] at once. It occurs when Wario is hit and is knocked off his bike on the same frame he would normally fall off it due to moving too slowly and/or riding too long. Both bikes dropped are fully functional; they both "belong" to the originating Wario and so he cannot use the move again until both are destroyed.

As a glitch that only occurs on a specific and hard-to-predict frame, it is extremely difficult to intentionally perform. One method of attempting a consistent timing is to hold back and up as soon as the move begins, so Wario turns around, pulls a very slow wheelie, and falls off after about 3/4 of a second. As the values which control Wario's automatic dismount are not necessarily integers, the glitch may be impossible for a specific set of inputs; as a result slight variation in timing and positioning may be necessary if it can't be achieved.

During the move, the bike is attached to Wario, not the other way around as may be expected. As a result it is Wario's job to disconnect the bike at the correct time, which deletes the bike as a prop and creates one as an item. Wario does this whenever he gets off the bike through any means. It appears that is he is hit on the same frame he gets off, both the "disconnect, I fell off" and "disconnect, I got hit" segments of code are run, without one telling the other "already disconnected, so don't again". As a result two bike items are created.