I remember using an action replay device at some point in Mario And Luigi: Partners In Time to get things like infinite health, money, items and etc., and managed to make it to what I'm guessing is the final boss. All the shards of that crystal star thing had come together, and then the mushroom alien queen (whatever they were called) appeared and the fight began. I never could defeat her, for some reason. No, I don't mean I kept getting defeated- I mean I would be attacking and attacking and attacking and several hours later the fight is still going on...Was there something I was supposed to do to finish it...? I've never checked out online what the problem was.