The game begins with a long cutscene following the travails of Jak and Daxter at the end of their first adventure. To make a long story short, Jak and Daxter, Samos and Keira are shot into the future and split apart.
Jak is taken away from Daxter, thrown into custody by new character Baron Praxis, the tyrannical 1984-ish ruler of Haven City, where they have landed. Two years pass as Jak is experimented on and pumped full of dark Eco. Daxter finally finds Jak and frees him, and then proceeds to watch as his buddy, unable to control the chemical changes that now take place in his body, turns into an Eco Hulk and wreaks havoc on the city's Crimson Guards.
The affect on Jak is that he's not only mad, filled with anger and rage at his unfair imprisonment and even less fair torture, but that he's changed. He can talk, he's not so friendly, he likes to break things, and what's more, he wants to fight. This, of course, is just the set up, the initial storyline, but it works on a few levels. Not only does Naughty Dog establish right away that this is not your ordinary platform game, it then proceeds to tell you a story worth listening to.
One of the very few games that can be said to be a takeoff on the GTA type game takeoff that actually worked. Part action game, part platformer and quite honestly one of the best games I've ever played.
The game had almost everything: shooting, platforming, free-roam, shooting galleries, skateboarding, racing, plenty of mini games including one thats the equivalent of whack a mole (great fun for when you and your friends are drunk), and even a section of the game where you use a mechsuit similar to the one used in the movie Aliens
. Thats also not to mention the stunning graphics, good storyline, solid voice acting, great comedy especially from Daxter (whom you play as for brief moments in the game) and just the right level of difficulty for the wonderful gameplay.
My favorite of the series and I remain hopeful that when the PS3 comes out Naughty Dog will develop a new trilogy. All of the games were fun but this IMO was the best of the bunch. The branch out to racing was okay but I'm hopeful that they return to the action/platformer format