well oro can almost take endless damage with those snake jutsus...if it weren't for oro's ability to molt and have a new body, he'd be in a lot worse shape than jiraiya. this whole kyuubi chakra no usage reminds me of inuyasha where inuyasha changes to demon mode but he's told not to do it. i'm pretty happy that naru will be using his chakra more so now because we can see what he's really capable of after jiraiya trained him. so far all we really saw was odama rasengan. i look forward to him using his wit and his crazy amount of chakra to fight battles now.
the only problem i have with this manga is that now i have to wait another week for the next one. darn it! i'm going to have to go to NA (Naruto Anonymous) so i can stop reading manga every week for about a month, that way i can come back to 4 or 5 at once. O JOY!