This is a small game I made in order to get better at using PICO-8. I likely won't come back to improve it, but I thought I should post it anyway.

Hey. It's quite nice already! Thanks for sharing.

Even though you said you won't improve it, I still want to mention two things I noticed.

The extension of the snake looks a bit glitchy. It probably would be better if the snake would grow over the next few frames.

The other thing is a bit more problematic. You thought about disabling back-turning. So if I move right, I won't die if I press left. But two button presses within one frame do not get handled correctly. So for example, if I move right and press down, then right again, I might not move down a row. Also if press down and left, while moving right, I die instantly, because I turn around on the spot. :D

Keep up the work though! I just mention those things to help you improve in future games.