Interesting. I have a few minor concerns: 1. There was a point at which I repaired all of the holes in the defense module (the patched-up-metal-sprite appeared over the holes) and was not losing oxygen, yet the room was still blinking orange. I had to eject the room to continue :/ 2. I got stuck on the doors a few times — didn't cause me to lose the game, but just worth noting. 3. The back to sleep button at the end of the game doesn't seem to work?
I really liked the pixel-art style! I wish it had been applied to the player's hand as well — felt kind out of place, as did the meteors. While on the topic of visual things, it would be nice if the hole would be 'patched' as soon as you repair it, instead of having to repair all holes in the room before it gets patched. You can also see into other rooms through the holes, as if the rooms didn't have exterior walls (and you can see rooms that you've ejected). Nonetheless, great work! I played through the whole thing.