Gyruss
Xbox Live Gamerscore:
Great Start (10):
Acquire at least 12,000 points in the first stage.
Earth (30):
Get to Earth.
Partners (10):
Acquire at least 60,000 score during an Xbox Live Co-op game.
Safety Comes First (10):
Get to Neptune without losing a life.
Good Shooter (10):
Defeat all ships on the first 3 bonus levels.
Strong Guy (10):
Get to stage 7 without getting any bonus weapons.
Uranus (10):
Get to Uranus.
Very Good (20):
Acquire a victory in 50 Xbox Live Versus games.
Jupiter (20):
Get to Jupiter.
Saturn (20):
Get to Saturn.
Team (20):
Acquire at least 200,000 score during an Xbox Live Co-op game.
Mars (30):
Get to Mars.