Night Creatures has some charm to it. It is sort of like a cross between Altered Beast and Dragon's Curse. You transfer from a man to one of four beasts (including a badger, lol) but with a caveat that you'll start losing life after you change, but the beasts are required to help you get to new parts of levels. The game is very difficult and doesn't offer much in the way of cheats or help, but it is kind of fun and something I like to pop in from time to time.