After doing my stream I wanted to quickly see if I could find the super mario game where kenny was replaced on the planearium site but to no avail. The original site, however despite being ages old is still up with the same design language it had in 2002
https://www.planearium.de/southpark.php

The link in question I am trying to find:

http://ftp.gamesweb.com/pub/southpark/games/kennysinsel.zip