Naughty dog has been known for shocking the audience in its sequels. In jak and dexter 1 Jak doesnt say a single word the whole game. He comes off as a humble lovable athletic guy, who saves the world with his fists and jumping.
Jak 2 starts with Jak talking for the first time in the series. And he's hell bent on revenge and doing things completely out of line of what he seemed like in the first game. On top of that he picks up a gun and starts killing. Over all very strange turn for a sequel that was to a Mario like platformer.
You can expect the same shock and complete 180 of characters in this game, with basically the same game play of the last of us 1. If you expect anything from this game. Stop it.
Go into this game with no expectations and it's pretty alright. People expect stories to teach lessons now a days, but there is no lesson. There is a lot of hypocrisy but perhaps that's to set up another game.
Get it if you want, but I enjoyed it more watching someone playthrough on youtube.