Such a great game..
So Jak's in prison for 2 years, right? Well Daxter breaks him out finally and he's pissed off and wants revenge against the Baron.
Now he's got a new ability to turn into Dark Jak. He's this really pissed off creature who will basically rip your organs out with his claws. Jak can actually talk, he looks bad ass, and the missions are just pure fun. There are some glitches in this game to add if you ever get bored. It's great to have all the precursor orbs for unlimited dark jak, invulnerability, and unlimited ammo. There's no stopping you with the cheats on, and you could go rampaging Haven City all day...
The only downside is that the game is too hard and sometimes you'll want to chunk your controller at the wall. Other than that, it's great :D