I have never read Calvin and Hobbes. When I say that, people often think less of me. It’s a comic strip from, like, twenty years ago.
Any way. I can’t imagine the inventor of Calvin and Hobbes knew that Robert Morris University would offer a Game Design Studio class – let alone two iterations of it. That being said, a game like Calvin Ball is a perfectly approachable way of asking the hard-to-approach question of “What’s a rule, really?”
I don’t think this game is a game to be played more than once. I know that’s part of the “rules”. But even in practice, one game of Calvin Ball is enough to remind you of any established game that you could play to pass whatever time you were passing by playing Calvin Ball.