ok so ive tested your sage naruto and here are the results. 1. the biggest issue is the immortal kyubbi. not a good idea. it makes him very cheap.
2. Your rasen shuriken sprites need some work. Its WAYYYYY to small. Plus the explosion sprite needs to be a tad bit bigger. but good work with the speaking/action scene. makes it feel very legit.
3. I really like the chargeable kyubbi chakra ball attack. very nice touch.
4. some people have commented that your attacks dont do enough damage. I honestly dont see what they are talking about. i think that its very good amount of damage. you dont want him to be super cheap, so very good with that-dont listen to stupid ppl.
5. Your mass shadow clone attack should just be a group of shadow clones doing a combo then dissapear. its just a little cheap to have 20 shadow clones on the screen for the rest of the match. if your planning on something lke that-maybe reduce it down to no more than 10.
6. Very nice rasegan sprites. . but might i ask where you got the picture of naruto that you use when he uses Odama rasengan?
7. very, VERY nice super giant rasengan, (or whatever you call that big rasengan he raises above his head.)
8. does he have a giant toad summon?
9. Thank you for your hardwork at such amazing characters. I really appreciate it, and i thnk others do to. Without people like you, the mugen world would just be....dull. and naruto characters would be like those crappy cosplay ones. haha. thank you so much.
10. you should really make a good kakashi. or some new DBZ characters. 
but thats just a request, please dont take my petty suggestions as something to really work hard for. i dont wanna be the guy thats like "hey nice job! make this for me now." lol.
) umm...AMAZING!!!
