Good music,nice visuals.But in terms of gameplay it bassicaly just run around until u die.Not very much to do if you want to prevent it.Also i think will be better to change theme to a cosmic stuff.Like robots,aliens and other stuff.And make so enemies dont block you,just let player pass through?
You can make guard robot to chase you around,but he will shoot in several random directions,and this will kill enemies.You die if you was cathed by robot or aliens.And after aliens dies he will give you some hp.I dunno.Cool concept,but off topic it seems)