This could be any game in the genre if not for the Hellboy character models. I put it down after 5 minutes.
Things that would be more worth your time/effort/money:
-Watching the first Hellboy movie over and over again
-Crafting yourself a realistic Hellboy cosplay costume
-Writing Hellboy fan fiction
-Talking about Hellboy on an internet forum
-Making your own Hellboy video game
The only thing that could make this game worth it would be if playing it summoned the real Hellboy, and he killed you for playing it; At least then you'd get to meet him. But no - you just end up shutting the game off and taking deep breaths, resisting the urge to fling your PSP right at the wall. Then you come to your senses and just fling the UMD at the wall and watch the fragments fly in all directions, noting that this alone is a more entertaining use for the game.
Other reasons to stay far, far away:
-PS1 era graphics
-PS1 era gameplay
-PS1 era controls
-Ugly comic book slideshow cinematics