Sent to you by Ammon via Google Reader:
The game is similar to the classic Snake you may have played on ancient Nokia phones or early PCs. You control a snake that eats dots and gets longer and faster as the game goes on. If you hit the edge of the screen, or touch your own tail, it's game over.
To unlock this amusing little gem, just hold the left for a while when you've got a video selected. For a clearer illustration of how this works, we've included a demonstration video from the guy who claims to have discovered the game. Happy snaking!