I really liked this game! It's a twist on the classic snake with numbered heads to match the countdown theme - at first I may have been a little confused, but I picked it up and it was fun. I liked the idea of strategizing to make sure you don't hit the wrong color and thus create a new head.
My main gripe is: I don't really know if there is a particular reason you can't just go for all colors? I guess if you kept alternating for example, you would get more heads which would ALL start counting down, which is ofc not good; ig what I'm saying is maybe you could add some more incentives for choosing the same color (idk like combos?). This is a bit nitpicky though haha.
Also this is probably just me but the sound effect for collecting a square is a little annoying, but again this is really nitcpicky (I'm only suggesting this because your game is quite good).
Also I noticed that it seemed a little unresponsive to my keyboard (it likely *isn't* but the turns always seemed a little delayed, so either adding some sort of sound or visual effect to indicate that I have turned).
Thanks for the wonderful game!