| Achievement | Task
|
|---|
| - Completed the Single Player game on Elite difficulty
|
| - Finished 'Interface' single player level without using any health packs
|
| - Killed a total of 25 aliens in single player
|
| - Used all weapons and items in the game
|
| |
| - Killed 50 aliens in a row without taking any damage
|
| - Finished a single player level without using any items
|
| - Finished CO-OP Assault level 1,2 or 3 with no player losing a life
|
| - Killed 20 aliens in 30 seconds
|
|
| - Picked up 100% of the logs
|
| - Found all secret collectibles
|
| - Complete "Hydroponics" in Co-op Assault
|
