Whispy blink glitch
The Whispy blink glitch is a glitch in Super Smash Bros. Melee, first discovered by Magnus420 on SmashBoards.
The glitch only works on version 1.0.
How to perform
Choose Marth or Roy as the character, and play on Dream Land. Wait for Whispy Woods to blink twice. Right before Whispy's eyes are closed for the first blink, you must execute a jab, forward tilt, up tilt, down tilt, dash attack, or standing grab.
If done correctly, Marth or Roy will swing their sword in an unusual way. The attack will last as long as it normally woud and the corresponding hitbox will still be attached to their arms and swords for a brief moment (except for the standing grab's hitbox which acts independent of Marth's or Roy's arm movement).
Explanation
The mechanics of the glitch are unclear. One explanation provided by Evsen on reddit on September 2016 stated that when he was using Dolphin emulator's texture dumping feature and claimed that Marth's face was dumped on Whispy Woods. He assumed that Marth and Roy's blinking animation is tied to Whispy's, and the animation glitches because the game may have been trying to use both blinking textures at the same time. Though accepted for years, AsumSaus debunked it in 2020, who analyzed Evsen's footage and could not recreate the finding, making AsumSaus believe that Evsen might have misremembered exactly what happened.
