This was pretty fun :D The pixel art is really amazing and the concept is super cool. It took me a few tries to get used to how to work the ship but after that, it was decently easy. I'm not sure if I was just lucky but I never had to do anything with the batteries, I don't know if that was intentional. My only suggestion would be to skip the intro sequence after the first go, it got a bit tedious to wait and then walk all the way to the ship again before being able to retry.
All-in-all a really good little game!
8/10