Crazy Hand (SSBM)
Crazy Hand (known internally as CREZYH) is a boss character who first appeared in Super Smash Bros. Melee. In Classic Mode, he appears as a bonus boss fought alongside Master Hand; to fight him, one must play Classic Mode on Normal difficulty or higher, reach Master Hand, and reduce Master Hand's HP by half within a total of 5 minutes and 50 seconds since the start of the mode. Crazy Hand starts with the same number of HP that Master Hand started with (dependent on the difficulty). Outside of Classic Mode, Crazy Hand can also be fought alongside Master Hand in Event 50: Final Destination Match.
Most of Crazy Hand's attacks are stronger variations of Master Hand's; however he also has a few unique attacks of his own. On top of his standard attacks, Crazy Hand can team up with Master Hand for a few attacks.
Note that none of the names are official. Crazy Hand can only be played by using the debug menu through an Action Replay. All directions are pressed on the D-Pad, not the Control Stick. Lastly, Crazy Hand can only be controlled by Player 4.
In combination with Master Hand
The damage recorded here is only for Crazy Hand's contribution to the attack. For Master Hand's contribution, see Master Hand (SSBM).
In terms of debug mode inputs, Crazy Hand must go first. Then, Master Hand must finish what he's doing and input Y↑. Not doing so will leave Crazy Hand stuck in the "waiting for Master Hand" phase until either of them is KO'd. If Crazy Hand inputs Y←, Master Hand will ignore it (there is no corresponding attack), which will guarantee this.