Press the space bar to start the animation. The counter will count each time a green circle stops a purple square. The timer will keep score.
The prompt for day five of Getting Unstuck 2020 was to use the touching color blocks in the sensing category, in this case, green stops purple. This is very basic and I have some ideas for trying out random positions to see how long it might take. I also think there is a way to save the timer from game to game. Finally, it would be interesting to see it can be harder or easier? Faster green balls, faster purple squares? This is calling for remixes, I think.