Amazing game, great idea. Level 6 was the most difficult imo, most paths I found left one greenware tile. Sound design is great, but tile selection and movement are too close to one another, I often moved a tile when I wanted to select one. It would also have been nice if there was a hotkey for restarting like pressing 'R', or an undo function, if you accidentally move a tile in a way you didn't want.
I had a lot of fun