Super Smash Bros Ultimate for the Nintendo Switch has every Smash character that's ever smashed before. Plus, there's one addition aside from the Inklings: Ridley from the Metroid series.
The reveal occurred at the Nintendo Direct E3 2018 presentation. Ridley, Samus Aran's dragonlike arch-rival, has been a much-requested Smash character for years. His exclusion has been chalked up to being "too large," but here he is in Smash Bros Ultimate. Large and in charge.