Achievements
Complete each achievement to get the allotted gamerscore:
Avant-Guardian (15) - Defeat 250 Guardians in total.
Guardian Killer (15) - Defeat your first Guardian.
Happy Medium (15) - Score 5,000,000 points in Arcade Mode.
Bully (15) - Squash 111 harmless enemies with your ship during one level.
Grand Master (25) - Destroy at least 1000 of each enemy type.
Guardian Hero (15) - Defeat 10 Guardians in a game.
Hunter Killer (15) - Destroy 20 Hunters in one game.
Well Hard (15) - Score 10,000,000 points in Arcade Mode.
Smarter Than The Average Bomb (25) - Destroy 50 enemies with one smart bomb.
The Big Easy (15) - Score 1,000,000 points in Arcade Mode.
The Bouncer (15) - Bounce 100 enemy bullets with an upgraded shield in one game.
XXXXX (15) - Raise the score multiplier to 5x.