Knock Out!

Knock Out! is an unused enemy spell hidden in the code of Super Mario RPG: Legend of the Seven Stars. Its sprite and sound effects are the same as Drain, an attack that every type of Shy Guy can do. The only difference is that this is an Instant Death Attack! It does 9999 damage to all party mambers! That can be seen, because Nintendo forgot to hide the numbers of the damage did to a character.