When God-Emperor's scheme turns his Mastermind into a Twist, must every Mastermind be defeated before the Final Showdown?

Question

Accepted Answer

Yes, if the optional Final Showdown is used. Every Mastermind, God-Emperor included, must be defeated before the Showdown can start, since defeating one is not enough.

Legendary: A Marvel Deck Building Game

When God-Emperor's scheme turns his Mastermind into a Twist, must every Mastermind be defeated before the Final Showdown?