Overall, this is a great idea, and I like the story. I personally didn't see any use for the gun or camera movement though, so I pretty much just ignored them. I think it would be cool in third person though, and you could see your little astronaut being pulled into the void with a jetpack to steer or something. It could also be cool with spaceships as well, but a person with a gun in the void doesn't make a ton of sense. This does look really good though, and is a great prototype to build from!