Successfully complete the game on the Insane difficulty setting to unlock all stages.Achievements
Accomplish the indicated achievement to get the corresponding number of Gamerscore points:
- Ace (20 points): Earn 185,000 points.
- Diplomat (15 points): Complete a level without firing.
- Epic Warrior (10 points): Form a four-ship (epic) formation.
- Exterminator (15 points): Destroy all enemies in a level.
- Halfway Point (5 points): Finish Mission 3 on any difficulty.
- Hero (25 points): Complete the game on Normal.
- Immortal (15 points): Complete a level without dying or losing allies.
- Legend (50 points): Complete the game on Insane.
- Rookie (5 points): Earn 30,000 points.
- Teamwork (15 points): Score 10,000 points while attached in a level.
- Untouchable (15 points): Complete a level without taking damage.
- Veteran (10 points): Earn 100,000 points.