Urging for some FPS action on the PSP never fear Konami is here, and they brang with them selves a pretty decent shooter too, the game is set in a cyber world full of monsters, robots and weird looking aliens, as you blast your way through numerous levels of gunfire and heart raising action you begin to upgrade your weapons and shields through file updates, but that's about where the fun stops, apart from the multiplayer which pits you against your friends, the story is the same the whole way through, shoot and fire, find doors and upgrades then beat the boss to open the exit, and you'll find your self getting bored rather quickly (too quickly me thinks)
After being the only FPS on the PSP and the controls being rather easy to use Coded arms only let down was its dull story line, but lets hope we see more games of this genre in the future.