The goal is to eat food to grow as long as possible without the worm running into itself or a wall. Press the arrow keys to direct the worm in the direction you want it to move. Eat the food pellets by directing the worm over them. Every time a food pellet is eaten, the worm will digest it and grow a little longer. Stay alive as long as possible, but if the worm hits a wall or itself, the game is over.