Master Hand

Master Hand (マスターハンド, Master Hand) is a hand-like entity who acts as the main recurring boss and the main antagonist of the Super Smash Bros. universe. He appears at Final Destination as the final boss of the 1P Game in Super Smash Bros. and of Classic Mode in Super Smash Bros. Melee, Super Smash Bros. Brawl, Super Smash Bros. 4, and some fighters' paths in Super Smash Bros. Ultimate. He also plays a large role in Adventure Mode: The Subspace Emissary and Adventure Mode: World of Light. Due to his role as a boss, Master Hand is often unplayable barring hacks, though a glitch that allows the player to play as him exists in Super Smash Bros. Melee. The player must bring his HP down to zero to defeat him. Master Hand's left hand counterpart, Crazy Hand, was introduced in Melee. A being tied to the link between this world, where trophies fight, and the world beyond. The meaning of his existence is unknown, as are his goals, but he seems to have obtained (and kept hidden) a power that borders on absolute. He also seems to feel a certain joy in challenging chosen warriors who've claimed many victories. He waits even now in Final Destination.