BFF or Die puts up to four local players in control of time traveling aliens lost on Earth in ancient Egyptian times. They're trapped in dark dungeons, you see, and in order to escape, they have to work together. While some players start getting through the mazes, for example, others will provide light or distract enemies. If someone doesn't pull their weight, nobody's getting home!

Ok, so BFF or Die isn't as serious as the name implies, but it does convey the mild sense of humor inherent in the experience. The game is essentially puzzles and mazes in the dark, where half of the players are wandering on the screen while the other half help out in a semi-god-like position, shining lights, distracting enemies and such. It's a straightforward set-up, but it hits at the very core of what makes co-op gaming so fun: shared experiences.