I really loved this, even if it was a short experience! 

I can easily see this game becoming something really fun! I would love to see different modes where the triangles might be the same color as the circles, they might spawn faster, the circles might have different movement patters, etc. Great submission!

I like the aesthetic and the music of this game, it's very cheerful. I also love that you took time to create a little tutorial before starting the game (I know my game needed one) and that the game actually becomes more fast paced as the game progresses.

On the other hand, I think the regular windows mouse is a bit too difficult to spot, having a custom mouse image with a different color and being little bit bigger would benefit this game a lot.

Fun clicker defence! Also, going over your code, nice and compact!

Simple but good.

I like the overall theme, and the Music is AMAZING.