This has a lot going for it: attractive graphics, solid sound effects, catchy soundtrack, and most of all, quite an original concept and central gameplay mechanic! Capturing planets like a game of snooker is, well, very cool.
My only reservation is that there didn't seem to be much variety in the gameplay: each level appeared to be the same. It occurred to me that different types of planets may have different attributes, but I wasn't able to detect this through the game.
Were there other options besides "Battle"?