Crazy Hand (クレイジーハンド, Kureijī Hando) is Master Hand's left hand counterpart first appearing in Super Smash Bros. Melee. While Master Hand's movements are very smooth and calm, Crazy Hand moves in erratic ways. He is fought in Melee when Classic Mode is cleared on Normal level or higher in 18 minutes or less when Master Hand's health is reduced by half. He also appears in Event 50: Final Destination Match.
Crazy Hand's basic appearance is exactly the same as Master Hand's (apart from being a left hand), but is more chaotic in general. He is impulsive and destructive. When preparing for an attack, Crazy Hand's movements are also different. When joined with Master Hand, they can perform several cooperative attacks. He, like his counterpart Master Hand, is always fought on a version of Final Destination.
Though he appears in Super Smash Bros. Brawl during the Boss Battles mode, he does not actually appear as a boss in The Subspace Emissary. Despite this, his trophy, when arranging the collection by series, is listed in the "The Subspace Emissary" section. Aside from this, though, he merely reprises his role in Classic Mode, and has no relation to the SSE, despite the fact that Master Hand appears.
To fight him in Brawl's Classic Mode, the player must arrive at the final stage in 9 minutes or less with the difficulty level set to Hard or higher. He also appears as one of the many bosses in Boss Battles Mode. Boss Battles is the only time the Crazy Hand is fought separately and be faced without any special conditions. Crazy Hand is also the only boss that does not have to be fought in order to unlock Boss Battles, and is the only boss in the mode to not make an appearance in the Subspace Emissary.
To fight him in SSB3DS's classic mode the player must reach the final branch with 3.0 intensity or higher, and then choose the black path.
Note that Crazy Hand can't be fought in Classic Mode on the two easiest difficulties.
Where the Master Hand loves to create, its alter ego is impulsive and destructive, consumed with that hollow feeling which comes from destroying your own creations. The Crazy Hand appears when a player clears obstacles quickly and the Master Hand's power is low. You have only one chance to defeat the Crazy Hand.
Seemingly a manifestation of the destructive spirit in direct contrast to Master Hand, who is the manifestation of the creative spirit. Crazy Hand appears out of nowhere when Master Hand's power begins to ebb. His repeated attacks evoke the bizarre. Those who must face Master Hand and Crazy Hand at the same time face a long and painful battle to the death.
Smash 3DS trophy
The erratic Crazy Hand embodies destruction in the Smash Bros. universe. You can see madness in the way he moves and the attacks he unleashes. Pairing up with Master Hand makes him an especially dangerous foe. Be ready for an intense battle when their laughter fills the air.
While Crazy Hand as a character is unique to the Smash series, his attacks (as well as Master Hand's) are very similar to Wham Bam Rock's attacks in Kirby Super Star. Wham Bam Rock performs a move that involves putting its hand over the player and making rocks fall. Crazy Hand does a move that is very similar, but Crazy Hand's rocks explode with darkness. Both Wham Bam Rock and Master and Crazy Hand perform a move that involves "walking" across the stage to flick the player. They both will also try to grab on to the player and cause damage.