Arrow keys or WASD to move Press 0 to toggle editor mode Press 1 to switch between wood block and click wherever you want to place them. Press 2 to switch between The Crate, Gold block and Mystery Block. Press 3 To switch between iron blocks. Press 4 to switch between coins and Mario, if Mario is equipped then click wherever you want him to spawn. Press 9 to switch between Goomba and the super mushroom. Note: Place the mushroom where the mystery block is. Press 0 again when you are done editing.