I would love if someone could find me some video game sheet music for a Concert Band.(preferably Nintendo. Its fine if its not) I'm trying to convince my band teacher to let us play that kind of music and I've been looking on the internet for hours and will continue to look. Please help.

Well, dunno if you are a final fantasy fan, but they DO have quite a few cool pieces made for concert band at this site:

www.finalfantasymusicscores.com

www.nobuouematsu.com/main.html
thats the only site i could find