My personal favorite sites are mugenation.net and mugen-infantry.net you can find almost anything for mugen.
Chat with our AI personalities
www.esnips.com search the naruto characters u want, and put mugen in the front always, like mugen sasuke
scruffydragon.com
Type mugen free for all on google and follow the link. There you will find a huge selection of characters, from just about anything. I hope you find what youre looking for. ^^
Nope. But if you use mugen and add all the characters from SSB, you get yourself a brawl mugen :)
you have to download a game then take the character data in win mugen