I dreaded getting a 3-Star rank in Mario Kart 7, the AI was horrible, it literally took me a year to get the rank! In fact, I just got it a few weeks ago. I also really hate the arenas in Fire Emble. The only FE game I played that had arenas was the eighth one, and I would get so mad when my unit would die in the arena after hours of training other units. The worse thing, I heard it's even worse in other FE games because you can at least train in other areas in FE8.