Gravitron 2 [cheats]
Complete the following tasks to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", then "My profile", then "View all my games", then the game and view stats.
Ace Pilot: Complete any stage over 5 without hitting anything.
Air Ambulance: Rescue 100 scientists.
All Sectors Clear: Complete the entire game.
Destruction: Destroy 250 enemies.
HeatSeeker: Guide a missile into an enemy.
Hot Shot: High shots fired to kill ratio. Must destroy at least 20 enemies.
Pacifist: Complete any stage over 5 without destroying any enemies.
Pyro: Destroy 20 fuel pods.
Reflector: Destroy an enemy with a reflection.
Speed Run: Complete any stage over 5 in under 1 minute.