Great concept. I found it quite cumbersome to grapple around and could never collect any oxygen as it
would fly away and explode before I could capture it. The camera in the floor was quite annoying. Maybe a back ray cast
would help.
Also if you put your avatar update to camera cast in the LateUpdate() instead of Update() and the jitter
will go away.
I couldnt complete it after 4 attempts because I was getting thrown out of the hangar and floating away into space.
Overall, with a few tweaks it will be solid! good job!