Walk on the Outside of a Space Ship
To do this cheat, choose a space battle level. Then, go into any ship. press the button to take off, then go up to the force field. When your ship is part-way through the shield, immediately land. If you did this right, you will leave your ship outside the shield. If you went out of your ship and are still in the shield, move a little mor forward. Be careful. If you go too far out of the shield in your ship, it won't let you land. Also, if you fall off your space ship, you will fall for a while until you hit the botom of the level.