Use the Arrow keys or WASD to move. Use W or Z to jump. Your goal is to make it to the green box. You can pull orange blocks to activate switches, or jump on top of them to reach higher platforms.

In later levels, you'll earn a teleporting device. Press X to shoot a bullet. If it hits a blue box, you'll switch positions with it. Be careful, because you only have a limited number of shots in each level. If you run out of shots and get stuck, press R to restart the level.