So I just had a Smash dream. It wasn't long and didn't show much aside from Bomberman being playable(and yes, it wasn't the Mii Costume, cause Bomberman was using Specials involving bombs) and some sort of underground lava level from Mario, but otherwise, just about all stages returned from Ultimate and the only other characters shown were characters already in Smash like Fox, Link, Kirby, Falco, etc.
One of the most notable things that I really noticed was that there was this guitar item that Bomberman, and then later Mario picked up. I'm pretty sure it was based off Barbara the Bat's guitar. It started weird at first as it was used to smack people like other physical weapons like the Killer Edge, Fire Bar and whatnot, but then Bomberman/Mario played the guitar and did this stun blast, similar to Barbara the Bat's Assist Trophy from Brawl. And from what I could tell, it was actually the Special button used to activate the stun blast. It only replaced the normal B-special, as Mario was able to use his Up-special while holding the guitar.
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Think that could be an interesting twist for some items? Have some physical items that give a unique B-special alongside their normal attacks? Like say, Death's Scythe having a B-special where it summons out little mini-scythes that go after the closest players(that don't insta-kill over 100%) like what Death does in most Castlevania games?