Originally posted by: Insomniac
we dont know how strong Kabuto really is so its not hard to believe he kept up with Tsunade, it was said alot earlier in the series that Kabuto and Kakashi were even but the fight with Tsunade showed differently (also Tsunade was only losing when Kabuto spread the blood on her)
Originally posted by: Mut@t@like i said before... while orochimaru has been keeping himself in shape, jiraiya and tsunade have been wasting away doing stupid stuff. i wasn't surprised at all how kabuto was able to keep up with her.

i remeber kabuto taking a soldier pill, so that would drasticly help him,with keeping up