On the second layer, one of the players must stand on the white button on the right which opens the door, while the second player must walk through and step on the white button on the left. On the bottom layer, Fireboy must go through the lava and watergirl must go through the water. It it unlocked after completing level 1, and completing level 2 will unlock level 3. Level 2 is the second level in the game and it assumes the player is already familiar with the controls.
