Goal is simple. Beat the game with the goal of grabbing every single multi moon in the game.In total their are 22 multi moons. I would estimate that a run of this category would be anywhere between 5:30:00 - 6:00:00, in case any sane person wants to take the time any try it out.

this is basically just an extended darker side

It is just darker side full stop

Darker Side with a detour to Dark Side and the Mushroom Kingdom bosses. Sub 4. Unless you include something like all purples, captures and music tracks, that doesn't make much sense