| Achievement | How to unlock
|
|---|
| - Use the speed boost ability 10 times
|
| |
| - Use the speed boost ability 100 times
|
| |
| |
| - Allow 100k people to escape
|
| - Allow 10 million people to escape
|
| |
| - Allow a million people to escape
|
| - Use the speed boost ability 50 times
|
| |
| - Allow 500k people to escape
|
| - Allow 5 million people to escape
|
| |
- Defeat Easy Mothership (16)
| - Defeat the Mothership on Easy in Survival Mode
|
- Defeat Hard Mothership (22)
| - Defeat the Mothership on Hard in Survival Mode
|
- Defeat Normal Mothership (10)
| - Defeat the Mothership on Normal in Survival Mode
|
| - Loose all your lives on Easy
|
- Easy Satellite Saved (16)
| - Save the satellite on Easy in Defend mode
|
| - Defeat the first miniboss in Survival Mode
|
| - Defeat the fourth miniboss in Survival Mode
|
| - Loose all your lives on Hard
|
- Hard Satellite Saved (10)
| - Save the satellite on Hard in Defend mode
|
| - Loose all your lives on Normal
|
- Normal Satellite Saved (10)
| - Save the satellite on Normal in Defend mode
|
| - Collide with an enemy ship
|
| - Defeat the third miniboss in Survival Mode
|
