I love the idea. I didn't understand what was happening at first, but on my second run, I was excited to try and make my own kill-box that would trap the particles I shot out and almost guarantee that every single one would hit an enemy.
The enemies felt way too tanky to me, though. Even when it felt like half of my shots were landing, and I was using both the red and blue shots off cooldown, I still got overwhelmed really easily.
Regardless, great entry :)