Superb spritework and real nice to have music variation between the combat/non combat moments, i like the overall idea and having the controls be more physics based/asteroids like seems fitting for space.
But damn ! That difficulty curve is insane :o
I could never reach station 2 either by trying to fight or by making a run for it :(
I think this needs some rebalancing as is, now with that said still the game has qualities like mentioned with the graphics and music and some of the little touches like enemies that can blow themselves up trying to follow you through asteroids etc... plus gotta praise the full on options menu.
Solid core concept, just too bad about the difficulty, other than that still the effort and care shows :)