Super Mario Pong is the original name for this unofficial Pong w/Mario theme. The developers of this game were students from the Norwegian University of Technology and Science where one of their assignments in microcontroller system design was to create a Pong clone. Håvard Sørbø and Daugur Johanssonn created Super Mario Pong using the STK1000 development kit.

Check out their blog below for more info. There's also a video of what the Nintendo DS version should look and play like.

http://jonas.follesoe.no/PermaLink,guid,6c564384-7ed2-4835-afc7-542c6430...

If you REALLY want to play the STK1000 version of this game, you could always fork out $499 for the kit here:
http://www.avrfreaks.net/index.php?module=Freaks%20Tools&func=viewItem&i...

Then you'd have to get the software somehow... the code is running on Linux 2.6.11.