Hmm, the 1st one sounds like something GC would do. the second one... seems like you've been watching Dragon Ball Z lately...

My take on it is Shu would go bandit and steal Gai's Power-o-Kings gun and take out someone's void. then both duke it out with melee weapons. who's void Shu will be using, because it's pretty much a given that Gai get's Inori's. i cannot predict. but i'll take a wild guess that it would be his "mom"'s, and it would be a katana.