I think I got slightly past Prison Island before I gave up on the game. It's easily one of the games I've enjoyed playing the least, mostly because the main character (Shulk?) is incredibly annoying. He's easily the most annoying main character in a game I've played. The evil metal faced person whose name eludes me was ridiculously annoying too. And the plot so far being mostly "I want revenge on the person who killed the girl I liked" was quite horrid too.
Apart from that, it's a nice game.