FYI, looks like this game doesn’t work on Firefox, you might want to add a disclaimer.
It’s a really weird bug, everything is fine, but the bullet collision doesn’t work. Took me a while to find out why I couldn’t shoot anything 😅
The experience was enjoyable but, as grey said, I think it would be nicer if it forced you to go back to the rocket. It feels to easy to keep your oxygen at 10 by killing UFOs.