In each level there's various scenes that you can combine like in a jigsaw puzzle. Your goal is to reach a key to open the door that will allow you to go to the next level. For this you have to create a path to the key and then other path to the door. It will be more difficult as you progress through the 32 game levels.
Arrow keys to move the scenes of the main puzzle. Space bar to enter to a scene, and then the arrow keys will move your main character in the scene. Space bar again to go back to the main puzzle.