The Stoopid Unikorn
Spiciest of Guacamoles
Either that or the fact that an IP is in its infancy means massive changes can happen.Tbf you wouldn't really avoid the main character for any other reason other than the outlying condition that is surrounding them which is the assist which I can't imagine them doing but on the off chance they do, that practically puts the nail in the coffin for assists
Right now, Spring Man is the main character, but, and I probably said it a hundred times already, but people don't figure out how the entire IP works in one game. Who knows? Maybe ARMS 2 will be about Max Brass' rise to becoming champion or Min Min's fame after winning the Party Crash Base? In which case, Spring Man wouldn't really be the main character now, would he?
Or maybe another character became so incredibly popular that they became the mascot from that alone, like what happened with Morrigan in Darkstalkers.