Pre Magicant Ness and Sans at his absolute peak, battle takes place in Onett
HAH! Did you really think I would be that insane enough to do that? Ness would probably stomp tho. Well, at least we have Ninten; aka the only Earthbound protagonist that lacks the mother and holy fate hax blessed by TOTU. Which I find quite odd and funny at the same time, but hey! This is the closest we will get to a fair fight.
Ninten is at his peak and has access to all of his equipments
Sans is just Sans
Battle takes place in Mt Itoi, the same place where the kids fought Giegue