That would be interesting. Naruto could be useful in some challenges. Picture "Dodgebrawl" with Naruto against Owen instead of Harold.
Owen: Sorry dude, but you gotta go down.
Naruto: Bring it, fatty!!
Owen: That does it!!! (throws the first three dogdeballs but Naruto dodges)
Owen: (throws the last one)
Naruto: Take this!!! Rasengan!!! (Rasengan hits the dogdeball, repelling it and giving it enough force to send Owen back one hundred feet.)
Owen: OW!!!
Chris: Woah. And the Killer Bass win!!!
Naruto: Nothing will stop me, believe it! (or for those who watch the Japanese version, "dattebayo!!!")