User blog comment:Xilinoc/Ch. 578 (I'm not gonna spoil the title like Schiffy did)/@comment-1248963-20140424060130

Everyone seems to be getting different interpretations from the chapter's ending, but what I understood from Kenpachi's words was that Gremmy imagined (without realizing it) that Kenpachi was an undefeatable monster. Thus, Gremmy's imagination became reality, Kenpachi did become such undefeatable monster. Basically, Gremmy gave Kenpachi the power to kill him

I was starting to get bored with Gremmy trying to come up with more and more over-the-top ways to kill Kenpachi, but the ending was a really cool and unexpected twist, I loved it. A very amazing and intelligent way to end the fight