Hey, nice game! It was a really simple concept, but it worked very well, and the mechanics were explained nicely too. The levels were great too - they were confusing at first, but once you figured out what you had to do, it was satisfying to go through and complete them. I loved the art too, especially the limited colour palette. The sound effects could've been better though, especially the menu buttons, and they got grating pretty quickly.
Still, good job!