What we know so far as the hidden characters and final smashes
Dr. Mario- Mario Finale but with Giant Pills
Ness- Not seen yet on streams but believed to be the same PK Starstorm
Jigglypuff- same as its been, inflates.
Gannondorf- same as Brawl
Falco- not seen yet, most likely same as Fox
Wario- same as Brawl
Game & Watch- not seen yet
Duck Hunt Dog- See video on page 12.
Bowser JR- Shadow Mario transformation and makes a paint X on the screen damaging those who are near it juggling them.
Lucina- not seen yet.
Dr. Mario- Mario Finale but with Giant Pills
Ness- Not seen yet on streams but believed to be the same PK Starstorm
Jigglypuff- same as its been, inflates.
Gannondorf- same as Brawl
Falco- not seen yet, most likely same as Fox
Wario- same as Brawl
Game & Watch- not seen yet
Duck Hunt Dog- See video on page 12.
Bowser JR- Shadow Mario transformation and makes a paint X on the screen damaging those who are near it juggling them.
Lucina- not seen yet.