SMB2's engine twisted into a two player head-to-head fight. Other classic powerups from the Mario series included.
Player 1 -- Z: move left, C: move right, X: pick things up and go through doors, S: jump, A: throw or shoot fireballs.
Player 2 -- Left Arrow, Right Arrow, Down Arrow, Up Arrow, Shift
Secret Character Passwords: a new harvest, goodness gracious, flower power