Killer B had followed Eight-Tails' advice and kept a close eye on Kakuzu, allowing him to deliver a fatal blow the moment Kakuzu tried to flee. Although Kakuzu had five hearts, Killer B's full-power Tailed Beast Bomb vaporized his entire body. No number of hearts could save him from that.
Watching the apocalyptic explosion, Naruto's face darkened with exasperation. Was that really necessary? Kakuzu was a pain to deal with, sure, but did he deserve this? How much chakra did a Tailed Beast Bomb that powerful waste? Is this what happens when you have resources to burn-you just pay to win? So the poor rely on mutations, like Kakuzu, while the rich rely on technology-or cash. Mutations still can't beat pay-to-win.
After wiping out Kakuzu, Killer B danced with delight and rapped, "Had my eye on that move all along, you jerk... you fool... oh... yeah..."
Naruto walked up to Killer B, who was still riding his excitement and rapped enthusiastically, "What do you think, Naruto? That was me and Little Eight going all out! Flashy, right? You jerk... you fool... oh... yeah..."
Naruto stared in exasperation at the forest the Tailed Beast Bomb had obliterated. His mouth twitched. "Uncle B, I know you're strong, but did you really have to destroy the entire forest? Do you know how much damage that does to nature? Did you even think about it? All that just to kill one Kakuzu."
Honestly, with Kakuzu's level of strength, Naruto could have finished him with a single small, miniature Tailed Beast Rasenshuriken. Wasn't using a full-power Tailed Beast Bomb a bit like swatting a fly with an atomic bomb? Naruto strongly disapproved of Killer B making such a huge production out of it. Protecting the environment was everyone's responsibility, after all.
But Killer B felt