User blog comment:BlurayOriginals/Smash Speak 1: The Poltergust/@comment-4775004-20140401184734

I personally think it's a Final Smash, because of the way Sakurai talked about it, and honestly, despite my love for Negative Zone, it'd fit really well with him. Though the aura on the picture and the eye colour does seem to show Final Smash, which I'd be fine with. However since it's not said, how about: Interhangable Final Smashes? Both the Brawl ones and the SSB4 ones usable, possibly in the menu or using a different button combination, or something.