The original Jak & Daxter is a classic; Interesting Missions and challenges, impressive Graphics, well-calculated Gameplay, you name it. The only problem with it was the length. Now, Jak II: Renegade is supposedly three times as long, but you'll probably wish that it wasn't.
Unfortunately, the original game is as good as this Series has ever been. Naughty Dog has done what apparently numerous video-game companies are doing nowadays, and has drifted off onto a path which was never constructed for them.
Jak begins this game as a foul-mouthed, gun-wielding, rebellious mercenary. Having supposedly been imprisoned for around two years by the evil Baron Praxis, during which time he developed an ability to transform into a Dark Eco-fueled form temporarily, he set out for revenge on the evil Baron. Killing or injuring scores of people, whether they be innocent or evil, is nothing unusual in this game.
The original Jak & Daxter is humour at its finest; good clean fun...