M.O.D.O.K. is a Marvel supervillain appearing in Marvel vs. Capcom 3: Fate of Two Worlds. His name stands for Mental Organism Designed Only for Killing, and he is portrayed as a highly intelligent, floating cyborg with an oversized head and advanced psychic and technological abilities. In the game, he serves as one of the playable fighters from the Marvel side, bringing a mix of long-range attacks, traps, and awkward mobility that reflects his bizarre and dangerous comic-book persona.