My theme is retrieval of a remote drone I sent into a cave while exploring planet Zed. (x is so overused, don’t you think?) I have to pilot it out remotely and save that precious data, if I can. It’s too darn heavy to go in there and retrieve it manually. Fuel might be a problem, maybe I can find some along the way. I might even have some cached near the end of each level Falling debris obstacles, uneven landing zones, who knows what we will find? Good luck in there!