The stock glitch is a glitch in Melee that allows the player to play a character with the stock design of another character. This will also show the character of the stock design they're using underneath the character roster. Also, the token will be on the character they're actually using to fight when they do this Glitch. If the player presses Y or X after they've done the glitch correctly, the bottom of the screen will show the actual character and the stock glitch won't work. This has been discovered in 2009 by EPsilon933.
People will sometimes do this in tournaments or in friendlies. The most common stock designs out of this glitch are Yoshi's and Kirby's stock design.
Initiating the glitch
The player must do the glitch by first selecting a character. After this they must hit the B button once, then place the icon over another character. However, they must not press the A button. Instead, they must hit the Y button once, then press L + R + Start. After this, they must go back to VS. Mode and Melee, and press Start. If done correctly, the glitch should occur.