Yo I'm playing all the games with the word 'Astro' in the title.
So far loving these games. This starts off tough as nails but once you have enough oxygen you can slow down and move more carefully... although I still ended up carpet bombing my way to victory lol.
Love the pico8-esque graphics and the way the music warps as you delve deeper. Also appreciate how the ranged enemies don't shoot you when you're right in their face.
I got the mega-gem 36 runs (curious), but I was able to cut that down to 12.