OMG I love this! Such a neat idea and it works really well! I wonder if moving target areas could be another thing? Or if the goal could be to be fully-covered by the colour, not just touching it. Another tweak, a pause between transitioning the next colour? But maybe not, the pacing is pretty great already. Probably needs something to make it get more difficult or some kind of progression as the game goes on, but this is awesome work so far!!