That is a fun mechanic, I think some more time could have let you explore it a bit more and develop a more polished version that gives more agency to player choices and really highlights the color changes. This plays almost like a game i had on a pen once (except for the changing colors). I loved that!
Oddly enough the game almost got easier as I played, when you speed up to the point where you can hold a direction and fire 3 bullets while there every enemy dies until there is a color change