Scramble

Unlock Bombing Run         - Destroy 30 enemies without using your forward
                             shooting weapon.
Unlock Co-op Brilliance    - Obtain a score of 30,000 or more while playing
                             an Xbox Live co-op game.

Unlock It's a Mystery      - Destroy 3 or more mystery objects.
Unlock Perfection          - Complete the entire game without losing any lives.
Unlock Refueling           - Destroy 10 or more fuel containers on Level 1.
Unlock Sharp Shooter       - Destroy 30 enemies without once dropping a bomb.

 