A few feature requests: When I destroy an asteroid, it disappears but I can still shot it. The "start field" is nice, but I can go to one "start" and see it l

A few feature requests: When I destroy an asteroid, it disappears but I can still shot it. The "start field" is nice, but I can go to one "start" and see it like a small cube. I'm not sure how other games fix this. When the game ends, the mouse is still captured. It should be released automatically.