First, get a friend or enemy. Player 1 uses WASD keys, player 2 uses the arrow keys. Point of the game is to trap the opposing player into hitting your either your trail or their own. VERY VERY HARD. Most games last only a matter of seconds. Good luck!
This is my very first pen-related project! The idea is based on the movie 'Tron' (unsurprisingly). The background is Scratch stock. All programming is done by me.