How do I make custom Final Destination appear during Classic mode?

[CraptainFalcon]

I was wondering how you make it so that Edwguard Flow's Smash 4 Final Destination shows up during the Master Hand battle in Classic mode? I know they were able to do it with Melee's FD

[Xirvet]

The master hand battle is its own stage. It can be found in the adventure folder in the stages directory. The stages used for it are 900001.pac, 900101.pac and 900201.pac. It has different settings than your usual FD stage and as such putting a custom one there is quite a hard task. I tried myself with no success.

[CraptainFalcon]

Yeah, that I know. I know Mewtwo2000 was avle to do it with Melee and Smash 64 FD