A tiny bit of blur on your sprites, or maybe just turn on the "filter" flag would make it look a lot nicer I think, get rid of all those jaggy edges. And right now the menu button font is too small and light to read very well, especially with the thick white outlines of the buttons. The font is also kind of too condensed. It could be cool to keep reusing that sort of interlocking finger pattern. You could make the menus or buttons split apart and slide to the side or something.