| Achievement | How to unlock
|
|---|
| Army Of One | Reached Level 10.
|
| Finished first mission | Reached Wave 8 On The Rescue Mission.
|
| Finished second mission | Reached Wave 8 On The Survivors Mission.
|
| Finished Tutorial | Finished the tutorial.
|
| High Accuracy | Finished Wave 4 With More Than 80% Accuracy.
|
| Protector | Friendly Reached Max Level.
|
| Slayer | Killed more than 100 enemies in a single game.
|
| Stargazer | Hang in the mission control center for 5 minutes.
|
| Unlocked the Dual Gunner | Unlocked the Dual Gunner.
|
| Unlocked the Engineer | Unlocked the Engineer.
|
| You are no the boss of me | Killed a boss.
|