Quote Originally Posted by DarthEnder
Pain apparently keeps a bunch of spare bodies around. I'm guessing that's why that one looks like Yahiko because it WAS Yahiko and his real body is in one of the other tubes.
Good pickup. I didn't think of that.

Naruto apparently only has half of Kyuubi's power, and if Jirayai dies, he'll have the jutsu to open the seal(or redo the seal...I dunno).
Yeah. Minato used the Death seal to take away the Kyuubi's yin (darker/eviler) chakra, and used a different seal (called the Tetragram Seal?) on Naruto, allowing him to access its power. The Kyuubi's existence was described as a near infinite chakra mass, so half of something near infinite would last you a lifetime at least.

After all this talk about Naruto's seal, and Jiraiya mentioning "that technique", I think I'm beginning to understand why Kagemane_no_Jutsu's previous signature was flagged as a spoiler.