Complete each achievement to get the allotted gamerscore. The numbers between the () is the points given for each achievement.
| Achievement | How to unlock |
|---|
| Safety First (10) | Make it to Neptune without losing a life. |
| Tough Guy (10) | Make it to stage 7 without obtaining any bonus weapons. |
| Good Start (10) | Get 12,000 points in the first stage. |
| Sharp Shooter (10) | Kill all ships on the first 3 bonus levels. |
| Exploring Uranus (10) | Make it to Uranus. |
| Exploring Saturn (20) | Make it to Saturn. |
| Exploring Jupiter (20) | Make it to Jupiter |
| Mars Attack (30) | Make it to Mars |
| Mother Earth (30) | Make it to Earth |
| Partnership (10) | Obtain a score of 60,000 during an Xbox Live Co-op game. |
| Team Work (20) | Obtain a score of 200,000 during an Xbox Live Co-op game. |
| Too Good (20) | Win 50 Xbox Live Versus games. |
Verified by: this cheat is unverified
Submitted by:
Intoxication on July 02, 2009
