http://www.looneylabs.com/games/fluxx (http://www.looneylabs.com/games/fluxx)
Seems ripe for a custom deck with a PC Engine theme...?
I was just playing the Monty Python version. It's fun and really easy to play.
I love Fluxx! It's one of the few non-traditional games I have that's easy to play with folks who don't normally play board/card games.
A PCE-themed version would be sweet. :)