Nudity: 4 to 5
A drifting race of pantsu-headed alien octopi zooms into Earth's airspace for the sole purpose of stripping and abducting girls and collecting more panties. Your goal in each stage is to fly your UFO close to the girls and capture them, one article of clothing at a time, before abducting them. You have to do this while dodging missiles, bombs, rival UFOs that bounce you around, and even more frickin' missiles. Although the game starts off easy with the first few states, it gets really difficult in later stages. Also, for a game about a race of alien octopi, there is a distinct lack of tentacle-groping in this game.