My word. This too is ace. It’s another one of the seven “bit Generations” games that I now have. Basically, you wander round a solar system collecting moons and planets smaller than you, to make yourself bigger. You steer by pulling yourself in and out of orbit with the planets, which takes a bit of getting used to.
It’s like a cross between Katamari Damacy and that bit in Star Trek IV where they launch around the sun. Or something. Anyway, I’ve only done the first three levels because it’s a bit hard.