Is there a way to make certain characters appear in classic mode? Like I'd want to make classic mode like Melee and N64 where you fought metal mario and the alloys. After mario is giant bowser then master hand.
Nobody's done anything like that as of yet. I'd guess it would take a lot of custom coding. You'd have to tell the game "IF level 1, THEN fight Link on [stage], ELSE IF level 2, THEN fight Fox on [stage], ..." And I don't know if that's possible.
I really don't think this is possible yet... But man I would love it if classic mode had more variety in it... Like how Melee had you sometimes fight Ness and Mewtwo together... It would also be cool for PSA characters to show up in stages that fit them...
But maybe someone will do this at some point...