Was looking for an excuse to play this again and came up with a new type of run I like to call the Chaos Run.

The rules of the run are simple: Pillage as many moons as you want/need from each kingdom except don't collect any kingdom's final multimoon where it can be skipped to progress the story, leaving the kingdoms in a constant state of chaos as you finish the game.

Not all that different from a normal playthrough all things considered, but just the ability to pursue such an arbitrary condition like this really speaks to the degree of freedom offered in this game. Truly a spiritual successor to Super Mario 64's flexible sandbox.