I got three parts. Eventually a bad guy followed me right to my ship and killed me while I was inside getting oxygen.
I like the music and atmosphere, and the enemy attack effects are cool!
I did find this game to be hard in a way that did not make me want to try again. I found the baddies were very difficult and tiresome to try to kill so I just ran away from them. Also, I felt I didn’t have enough oxygen to search for parts, never mind fight bad guys. Even once I knew where the parts were, I barely had enough O2 to run straight there and back.
Maybe if you added more of a stealth element so you could sneak past the bad guys?
Awesome job for your first game. I think it just needs a bit of polish ways to deal with oxygen and bad guys.