This is fun and challenging, but some of the choices make it frustrating. The enemies spawning right on top of you doesn't seem to make the game more fun or challenging. Instead it just makes some rounds impossible to win. Losing should be because I messed up or wasn't good enough, not because the game decided to spawn the red dot inside my hit box.
Otherwise, its an interesting idea and I had fun trying to find the right patterns to get high scores.