I love you all to death (Just so I can smash bros with you) (SSBWiiU/3DS)

[Kriven]

Not being able to look at the hit boxes or skeletons for these models, I can only guess, but you wouldn't be able to use any of the other MegaMen without drastically altering their proportions. I'm talking limb-to-body ratio. If you shrunk Volnutt to be as short as MM Classic, just as an example, his arms and legs might become too thin to fit with the skeleton/hit boxes properly. It would come out very strange.