Great programmer-art game! I like the difficulty of making the circle faster than the square so you need to rely on strategy; I was able to get it stuck on corners quite often. I also noticed moving diagonally could actually outpace it which might be a bug. Some more sound effects would be great, and perhaps a limited sprint button. I've actually made a similar "AI chases player" game (on my profile) and this felt super similar, but I love the twist of turning the tables when the timer is green. Well done!