Players control Luna, the lost moon, as she hops from planet to planet on her way back home. Each planet helps in its own unique way. Ride a Comet! Get blown away by a Gas Giant! Accelerate to hyper speed on a Ring Planet! But not everyone in the galaxy is so helpful… ornery suns, mysterious black holes and, of course, the cranky Crab Nebula are all out to make sure Luna never makes it back to Mother Earth.