I would love to play that.
And I would love it even more if it was scripted as Fire Emblem: Radiant Dawn...
With each chapter, you change the group you get to take control of, and also the world in which they are located. In the final chapter, they all get together and fight the final bosses.
First chapter, Mushroom Kingdom: your squad being Luigi, Peach and Yoshi.
Second chapter, Corneria, with Samus and other characters from Star Fox universe.
Third chapter, Hyrule, with Link, Ike and other characters
Forth chapter, Gallia with Soren, Zelda, Micaiah, etc.
Fith chapter, DKC world with Diddy Kong, Mario, Dixie, etc.
Sixth chapter, Kirby's world with Donkey or Fox, etc.
I would love to see a tactical rpg out of it, but I'd be ok with an action rpg too!







