Very responsive controls for WSAD+Space. Gamepad sadly only reacted on Button South for shooting.
When you click on the in-game settings menu, clicks still trigger a projectile (and you may want to pause all the game-play while the settings are opened)
I wonder if the planets (there seem to be just 6 of them though the description page mentions 12) are somehow suspectable to asteroid impacts at all, anyway..
While charging a planet's shields at one place I was pushed out of the planet's vicinity from an asteroid and the charge up routine started again in parallel... if you dropped out of the planet's orbit it should probably be interrupted and then restarted when you get back to it,,,
I loved the scenery (the place seems to be really vast, but maybe it isn't so much and it's the planets are really tiny :) ), and the sound track very much fitted the more sedate and relaxing game-play.
There could also be some interesting outcomes (achievements?) like getting rid of all rocks, and possibly doing so while not getting so close to any planet that you deployed any of the shields. :D