The Tele-Game (Or better known as Tele-Spiel) is an interesting pong console that is more than just a pong console. It had some interesting games on it, particularly in later models, such as Autoslalom: A primitive driving game.
The graphics could only hold three objects on screen at once, but these could be resized and warped at will. Scores were kept on the console itself.
Perhaps the strangest thing on the machine is the cartridges. They contained no software, only different connections to access other game modes on the console. The two slider controllers also do not plug into the console, but the back of the cartridges in a single plug.