This page contains Aliens: Colonial Marines Unlockables for Xbox 360 called "Secret Achievements" and has been posted or updated on Apr 16, 2013 by hamzin131. Let us know what you think of this Unlockable by thumbs voting.
- Developer: Gearbox Software
- Publisher: Sega
- Genre: Action Shooter First-Person
- Release: Feb 12, 2013
- ESRB: Mature
Complete one of the following Secret achievements to collect their Xbox Live Gamerscore points:
|Unlockable:||How to Unlock:|
|Easter Egg (5 GP)||Find the Easter Egg|
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