I would
love a game that has every conceivable subsystem. But I also think each of them should fit onto a postcard and be ready to use as you read it for the first time, without the GM needing to even know they existed beforehand.
PbtA's move structure comes closest to that.
Play Blitzball
roll STARPOWER 3 times, on 10+ you scored, on 7-9 pick from the following options:
- opportunistic pass, +1 to your next roll but if it fails you got interrupted and the opposing team scores
- tackle their star, you're safe from them interrupting your pass
- showboat, impress the crowd
- etc