Achievements
Complete each achievement to get the allotted gamerscore:
Prototype Pilot (5) - Complete Level 2 on any Difficulty.
Alien Eradicator (10) - Earn 5 Stars on all 25 Levels on Normal.
Combat Pilot (10) - Finish Solo game on Normal.
Communications Officer (10) - Complete Level 5 in an Xbox LIVE Co-op match.
Earth Defender (10) - Earn 5 Stars on any Level, on any Difficulty.
Flight Commander (20) - Finish Solo game on Hard.
Ace Wingman (20) - Finish Co-op game on Hard.
Hero of Vanguardia-7 (35) - Earn 5 Stars on all 25 Levels on Hard.
Invincible (30) - Finish game without losing a life.
Scourge of the Skurgians (20) - Achieve 10,000,000 points.
Squadron Leader (10) - Finish Co-op game on Normal.
Survivor (20) - Complete 5 Levels without losing a life.