Oh they have, trust me, here's exhibit A and B - and that's only a small fraction of the panning I've found... People don't seem to get that the series is one of the best platformers to date, and arguably a good shooter and racer too.
Mmm-hmm. The whole 'bright and colourful enemies' to stark misery and blanch attmosphere, haha. It is quite a jump at first, and Jak II is imo the hardest & longest in the series. Usually takes me a solid 10 to 11 hours to complete the story. Hopefully you'll enjoy Jak 3! Third game has a lot more vehicle driving in it, and the last boss in particular features a dozy of a vehicle challenge. They really fleshed out the powers in the third game - and you can even transform when you only have a bit of eco collected, unlike the 2nd game, which I maybe only used Dark Jak about three times - once in the sewers, once in Dead Town and once for the final boss.
Hopefully you'll like 'em there's six games of Ratchet & Clank for ps2, but two are PSP ports and are made by a craptastic studio...said dev studio even made a 4th Jak & Daxter game, but for the sake of your sanity, please do not play it! It is horrendous to the extreme. Uck! Sly has only three games on PS2 sadly. There is a fourth game but it's for PS3 and not as good as the others if you ask me.
I still own my PS2 copies. <3 Since you mentioned you have a PS2, you should so pick up Jak X: Combat Racing. Really fun racing game set in the Jak & Daxter universe. It's a fair bit hard, but it's so much like Crash Team Racing, you'd be nuts to pass on it if you liked that old ps1 game.
Also if you can, try and get Ratchet: Deadlocked (also called Ratchet: Gladiator, depending on your region). That's my favourite Ratchet game ever, including the six PS3 games. It's pure combat fighting, and so much fun.
Wow, I talk a lot. <3 But gamesss man. Especially these gems from my childhood. <3