Well, you cant really say they sucked the fun out of it, since the game was a long boring grind anyway, but I also vote for Rage. The five finger fillet was done infinitely better in Red Dead (where it actually took skill), the Magic: The Gathering minigame which you had to find cards for in stupid places during the game - most of which you couldn't go back to - and all the fucking car racing. When the cars have twin stick controls. *facepalm* Also, the are...
Y'know what? Just arena games in general. It seems to be the done thing now to stick fucking arena matches in everything, just to pad out the playtime. Rage did it. Borderlands did it. Fuck, Borderlands had a whole dlc that was ONLY this. Amalur did it. I dont mind going round killing lots of things in the face, but when you literally stop the game for hours on end, it gets tedious.
I second the chocobo races and the fucking slot machines in FF XIII-2. Again, fair do's, if its just extra stuff that you dont need, then more power to ya, but the slot machines give you one of the fragments. And it is entirely luck based. Yeah, thanks for that.