I am just getting started with rom hacking, and I'd like to make an more challenging/strategic version of one of my old favorites, Super Mario RPG. One thought I had that I was wondering if is even possible: could there be a way to have all five characters in battle at once? It always bothered me that only three of the heroes could be on the field at a time, especially since my other favorite, FF4, could have up to five. I would love to build my hack around having them all out at once.
Any suggestions as to how to do this?