Interesting idea, the light treatment shouldn't offend... - never mind, they'll be offended regardless - and has some geometrical planning and resulting watchable action. Would like to have differing sounds for various-sized asteroids' impacts. Given the try for realistic-looking orbital velocities, the red box cutting off object distances may help FPS, but it seems too biased towards the horizontal direction yet also not enough to sling things at the left side of the start planet. Probably by design?
Suggest you have a toggle for the FPS in the top left? I'd keep the little display of what the target is. Undecided on the other 2 values (entities & effect of asteroid).
For the amount of help at the beginning, I was surprised to get stuck at level 6 with no idea of what to do once there were sheep on the target and how to handle the "iced" status.
Hope there's a sandbox mode at the end as a reward. Found that you could stack asteroids on a planet if you were careful.
Some fun, although I didn't get to the higher levels. Cute and workable graphics, good concept, very little that cried for change.