@MikeB & Parokki
I recommend the entire Jak and Daxter series.
Jak and Daxter: The Precursor Legacy is probably the best platformer to come out on the PS2, and that's no measily feat. It's got superb graphics for one of the earlier titles. It has some length and the gameplay will keep you playing for hours without dropping the controller. Pre-cursor orbs add to the collectability factor (they're more like coins in other games, excepts there would be 2,000 in one area, 500 in another - the other Jak games use precursor orbs much more sparingly).
Jak II: Renegade suffered from the 'trying to copy' GTA syndrome. However, in my opinion, this game excelled GTA in every way (except scale), the story and animations are amazing the gameplay is great. You feel like a real badass when you're playing as Jak, and the mini-game Daxter missions are a real blast. This game is easily the hardest and the longest game in the series.
Jak 3 is, in my opinion, the greatest game ever made (I know I said that Jak and Daxter: The Precursor Legacy was the best platformer ever, but this game incorporates so much more). The scale of this game is unbelievable the graphics are nothing short of breath taking (for it's time, anyway). I've had so much fun it's unbelievable. You like flying missions? It's got it! Driving? Got it. Shooting? Got it. Comedy? Action? Platforming? ANYTHING? Got it. The humour is the funniest yet. This was Jason Rubins last game as part of Naughty Dog, you can tell he wanted to leave with a bang. He suceeded, and he created the loudest and most perfectly sculpted bang ever imaginable. Oh, and Daxter has full missions in this game, and they are so much fun it's unbelievable. This game is a little shorter than the other two, and it's about as difficult as the first Jak (toned down from the second), though just like the other two Jack games the precursor orbs and unlockables add much to the replayability of the game.
The story for the series is somewhat deeper than your average action/platformer it deals with history/religion/strong characters/multiple time lines and it's told in such a funny way.
It's no wonder I'm so excited for Uncharted: Drakes Fortune.







