Google Snake

Game description:

If you ever had Tetris, you know what this game is about! Here you have to move around the screen controlling a snake that will be little at first. But the more dots you collect the longer it will grow. Each dot adds length to your character, and soon it will gain such an impressive tail that you will be risking running into your own piece of body. Or a wall. The further you move through the levels the more obstacles are going to add in your way. See how far you will be able to progress!