Achievements:ACHIEVEMENT – HOW TO UNLOCKPrototype Pilot (5 points) – Complete Level 2 on any difficulty.Combat Pilot(10 points) – Finish Solo game on Normal.Flight Commander (20 points) – Finish Solo game on Hard.Squadron Leader (10 points) – Finish Co-op game on Normal.Ace Wingman (20 points) – Finish Co-op game on Hard.Earth Defender (10 points) – Earn 5 Stars on any level, on any difficulty.Alien Eradicator (10 points) – Earn 5 Stars on all 25 levels on Normal.Hero of Vanguardia-7 (35 points) – Earn 5 Stars on all 25 levels on Hard.Communications Officer (10 points) – Complete Level 5 in an Xbox Live Co-op match.Scourge of the Skurgians (20 points) – Achieve 10,000,000 points.Survivor (20 points) – Complete 5 Levels without dying.Invincible (30 points) – Finish game without dying.