Press space to select the number of players. This is a 2-level mario platformer for up to 3 players. Player 1: Right Arrow = Right Left Arrow = Left Up Arrow = Jump Player 2: D = Right A = Left W = Jump Player 3: J = Right G = Left Y = Jump Try going into the pipes as well. Press space in the game to switch the number of players. I made up player 3 :) Enjoy!