Controls: Arrow keys or WASD to move. 0 key to switch to level editor mode. Other numbered keys to switch block categories. If you press the same key again, it will give you a different block in the same category. Click to place block at mouse. The space key makes the auto arranging tile system only consider blocks that are in the current click, no others. This is useful for placing objects so they look like they are in front of others. The Mario block is your spawn point. R resets the current level. L switches level.