If Elma did get in, maybe her classic mode could include all the stages with Boss enemies to represent Tyrants? Gaur Plains, Wily Castle and Find Mii, with the bosses spawning in almost immediately. Then the other stages could be based on some of the bosses she doesn’t fight at the end (ie Dracula’s Castle for Dracula, Fountain of Dreams for Marx and Temple for Ganon).
Tyrant-Busting Duty seems like a good theme, I dunno. Sometimes they’re the focus, sometimes they just pop in uninvited when you’re focusing on something else. That’s the true XBX experience.