"Since you have enemies coming from the sides why not use those as arrows" - Yeah, I think this is the route that I WISH I had taken. I'm glad someone called this out. I started by prototyping the arrow movement and patterns and then added the monsters, but if I had a little more time to design the game, I would have went this route and had the monsters be the actual arrows. And, yeah, the lack of beat matching is a drawback too. Anyway, I really appreciate that you took the time to write up this great feedback!