Really cool idea with some frantic gameplay and some excellent decision-making. I think this could be awesome if you expanded it into a full game.
Awesome idea for a puzzle mechanic. You need to clean this up and explore the design space a lot more. Also, the yellow and green(?) colors look identical to me (I'm colorblind).
Really cool style and the core mechanic is fun. Definitely want to see this one expanded into a bigger, deeper game!