I think that’s the case but i haven’t verified it. I’m also curious if beating both Mad Hatters would have the same effect.
Confirmed that it is NOT the case (i.e. still single ball) with beating Mad Hatter (rematch) NOR with beating both Mad Hatters (completion followed by new battle).
Confirmed: Shame is a multiball again after playing all the villains from the same season.
Long live Shame All Day!
Thanks for doing the legwork!