Might not work well in fullscreen. Arrow keys to move. Don't touch your tail or the wall. Collect the green blocks to get a longer tail. What coding goals do you have for this project? How else could you remix this project to do new things? Could you add a leaderboard? Could you make this two players? Could you make a player control a different enemy to make this a versus game?
The content on @BootUp's profile was originally created for BootUpPD.org by Jared O’Leary, a gaming, drumming, and computer science education content creator/streamer at JaredOLeary.com