Wow! This is an amazing idea and the execution is terrific!! It's so simple, but I love love love the idea of having to think about and mix your colors while running away from these little triangles. I almost saw it as a horror game sometimes LOL, with how panicked it made me feel.
I have a few criticisms, but they're only because the rest of the game is so good. The "Clean" button is a little too small, and I feel like the shooting doesn't really do much. I never killed a triangle, and I think limited ammo is just a little too harsh.
I think it speaks to the quality of the game that I played so long even after dying so much. It's VERY fun, so good job!! It's also a concept you can improve on further, if you so choose!