The game's difficulty curve going from the tutorial planet to the first ones is more like a difficulty wall - the rate at which enemies come towards you, and the rate at which some enemies shoot at you, make it difficult to choose in which direction to be firing at, a difficult thing exacerbated by the fact that the dialogue box of the protagonist being so huge and prominent, especially when taking damage. Sadly I could not complete the game, but as far as theming goes, I think you got an interesting look out of the chosen theme.