Game designer and KS contributor Pippin Barr continues his war on orthodoxy with his newest title Pongs. Inspired by his experience playing Painstation (which he documented for us), Barr went on to create a variety of new permutations of Pong including Edutainment Pong ("What is the capital of Mauritius?"), Laser Pong, Inverse Pong, and really just more Pongs that you can Pong your Pong at. Also, Pong.
Play it/them here.