The general idea is quite simple, and the game is quite simple to play - i really liked the way in which the spaceship drifts around the planets. I believe the movement controls could use some polishing and the game's mechanics could be explained a bit better. Mechanics such as the black hole explain themselves visually nice as obstacles (black hole - sucks you in/slows you) however their actual effect is not that visible (e.g. some colored area that is affected). The thing that kept me in the most were the audio and artstyle (Especially the spinning planets and the upgrade sprites)