you complimented our mechanic but your game isnt lacking at all, i enjoyed the simple yet super hard to deflect bullet patterns if your game was any longer it would just be too hard for no reason but the difficulty of the game was well portioned with its length and i loved it.
the changing colors mechanic is really unique to me personally and the execution was good.
but it made me angry every time i lost XD (skill issue i know).
oh and the music choice was on spot gj.