Yeah, I generally didn't comprehend why Mario Party was allowed since I don't remember those games being canon but eh... - wait, they didn't allow Sonic Shuffle or any of the Sonic cosmology either, what the f-!?
Still, it was good enough, much of the explanations made sense and holy hell, some of the scenes such as Metal one-shotting Bowser, decking Kamek, and KO'ing Junior, the punch out between Fury and Death Egg Robot, and The Death Egg firing while Bowser tried to defend his troops from it were all bloody highlights to this
I disagree with the fight HEAVILY (not mentioning some of Sage's abilities, Nightmare Eggman, and Light Man not even being included - though I do like the alternate outcomes showing how it could've gone, and it became super clear who they were going to have win when they had that whole 'Bowser's army is family whereas Eggman is only a schemer' during their run downs which made it less interesting.) This was definetly a super fun fight