Game development can be like a roller coaster ride sometimes. One minute a game is on track and everything is rosy, the next it’s delayed and rumors start to swirl that it will never see the light of day. The Wii has its fair share of promising titles that are threatening to go the way of the Dodo. Whether it’s financial hardship or even emotional distress that’s the source of the problem, the result is the same; games with enormous potential may never reach retail shelves. Here are some of the most troubled examples.