During the Galaga demonstration, wait until the Galaga Commander uses the tractor beam. Before it sucks up the ship, press fire and kill it. You now have total control and can play the sample level.

During the ''Galactic Dancing'' bonus round, don't do anything. You will receive a bonus between 10.000-25.000 points. Hold Up and press Run at the title screen. The capsule on the ship will turn ...