Ratchet & Clank: Up Your Arsenal Cheats

Secret Mini-Game
There is a mini game you can play, besides the five Quark ones. If you go to the level select for the Captain Quark Mini-Game, hit square instead of picking a game. A password entry box should come up.

1. The Robo-Pirate vs. Ninja FIGHT! game. Input the password as _MEGHAN_ and then hit the start button. This is a very fun, two-player, arecade style fighting game.