This page contains Alien Syndrome Unlockables for PSP called "Unlock Extra Difficulties" and has been posted or updated on Aug 1, 2007 by shuhei. Let us know what you think of this Unlockable by thumbs voting.
- Developer: Totally Games
- Publisher: Sega
- Genre: Role-Playing Action RPG
- Release Date: Jul 24, 2007
- ESRB: Teen
Unlock Extra Difficulties
In order to unlock the other two game difficulties, Hard and Expert, you must beat the game on the previous difficulty.
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