Stamped Snake 1s1s .

Must be played in fullscreen*. This is a challenging and fast version of the Snake game, played with the arrow keys, made using one sprite and one script (1s1s). When snake eats an apple, snake will become one square longer and snake's speed will be nine-tenths of it. Snake will wraparound/loop around sides.
* https://forum.snap.berkeley.edu/t/why-sprites-position-offset-by-tiny-fractions-in-non-fullscreen-community-page/18404/