All of the minigames in Mario Party that required the player to twirl the N64 analog stick in a circle as fast as possible, because it had the very real potential to physically hurt you. Not only did it result in millions of blistered palms around the globe, but it also did a number on the sticks themselves. My N64 controller's stick has a steadily growing deadzone in the middle and, while wear and tear is to be expected of aging hardware, I can't help but think that it would be in better shape if it weren't for those blasted minigames. Thank God the sequels ditched that particular mechanic and never looked back.