This page contains Hellboy: Science Of Evil Codes for PSP called "Unlock Ammunition" and has been posted or updated on Aug 20, 2010 by snoopy.
- Developer: Krome Studios
- Publisher: Konami
- Genre: Action Beat-'Em-Up
- Release: Jun 24, 2008
- ESRB: Teen
Quickly press Left, Down, Right, Circle during game play.
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