This is my Arcade System. You can play a version of Pong, or you can play Air Hockey. It doesn't use any electricity.
About this creation
As you can see, there is a title screen that says PONG, there is a playing area with gutters, there is a background colored red, white, yellow, and blue, there is a PONG playing controller (with coin slot), there are two Air Hockey controllers, and a scoreboard for Air Hockey.
The way you play this version of PONG (it isn't really PONG) is you insert a coin, it falls on to the playing area, and then you move the controller up and down, bouncing the coin between the top and bottom "walls". The goal of the game is to try and bounce the coin back and forth as many times as you can without letting it leak out the side of the controller.