A game you "didn't know it was bad 'til people told you so"?
I'm talking about games that you still like but you had no idea were criticized so much.
The perfect example for me is Sonic Unleashed.
I admit that the game has its bad things, but I would have never imagined that it was so hated at the time... Although, that could be extended to the entire Sonic franchise, since for many years I was not aware at all of that "Sonic was never good", "Sonic had a rough transition to 3D" nonsense.
Star Wars: The Force Unleashed II. Bought of for 9€ and had a lot of fun with it. Sure, the story was not as good as the first one and it's a lot shorter, but the new gameplay was great and it has a much better final boss than the first game.
I tried the PC version the other day for the first time, to finally see what the real game looks like. Might be nostalgia, but I thought the Wii version is actually better. I should install a Wii emulator to properly compare them.