This page contains Onslaught Unlockables for Nintendo Wii called "Expert difficulty" and has been posted or updated on Feb 20, 2009 by amjad12. Let us know what you think of this Unlockable by thumbs voting.
- Developer: Hudson Entertainment
- Publisher: Hudson Entertainment
- Genre: Action Shooter First-Person
- Release Date: Feb 23, 2009
- ESRB: Teen
Finish the game on Hard difficulty.
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