Arrow Keys to move, 0 to toggle level editor. press 1,2, or 3 to go to those layers. Layer 3 is layered OVER the player. You can place tiles wherever you want. While placing tiles, press space to automatically go to the next tile. To place collision pins on a tile, (collision pins are what the Player collides with in the game), to toggle the Level editor, press "P", then press 1 over the points you want to place a pin in. To remove a pin, hover over the pin you want to remove and press "X" Enjoy!