I bought Warioware, but I dont really like it. I think it may be ok for parties and stuff, but it has no realy playability, it gets old so quick. The best part is the multiplayer jumping game, but it takes agest to unlock multiplayer. Mostly because of all the cute little animations you have to watch.
Its just more of a kids game I think and Godfather sounds great from some of the reviews. A far better way of spending your money I would think. I dont have it though so couldnt be sure.