X to start on my keyboard.
Press Z to start (or continue after death), arrow keys to change direction.
Gather the fruit to get longer, and don't run into yourself.
Available on the PICO-8 forums at https://www.lexaloffle.com/bbs/?tid=42546
High Scores -- I've had 28,451 reported to me; post below if you get higher!
EDIT: Post score update, expect closer to 300 and 400. :-D