Totally Tetrisized Captain N: The Game Master : Season 3 Episode 4

Responding to an SOS from the world of Tetris, Kevin, Lana and Simon must face off with an army of humanoid Tetris blocks, controlled by a nasty Puzzle Wizard with a cracked sense of humor. The only way to defeat this wacky wiseguy is for Captain N to beat him at his own game -- Tetris!