Among the nine tailed beasts, Four-Tails Son Goku definitely ranked among the strongest. The strength of the Nine-Tails and Eight-Tails was beyond question, while the One-Tail leaned more toward defense and sealing. The Four-Tails' Lava Release excelled at both offense and defense. In the manga, the lava chakra of Roshi's Lava Release Chakra Mode after his Impure World Reincarnation had even caused Naruto intense pain in his golden chakra form.
Yet such a powerful tailed beast and jinchūriki had lost to Kisame Hoshigaki in the original story. Ultimately, it all came down to a terrible matchup.
Who had the strongest Water Release in the shinobi world? Aside from that man's younger brother, Kisame Hoshigaki was the best. Moreover, Kisame, who wielded the chakra-absorbing Samehada, already stored tailed-beast levels of chakra within his own body. Neji had once said that, among everyone he had encountered, Kisame's chakra reserves were second only to Naruto's.
Now, with Hidan and Kakuzu present alongside Kisame, Roshi felt a profound sense of danger. He immediately unleashed one of the two strongest ultimate techniques available to a jinchūriki.
Tailed Beast Transformation!
A gigantic red-furred ape rose from the ground, terrifying, scorching chakra pouring out of him. At the sight, Kisame merely lifted the corner of his mouth, his smile as composed as ever.
"Son! These enemies are no ordinary opponents! We have to go all out!"
"You don't have to tell me. I can feel it. This guy is a monster, just like us!"
The Four-Tails opened his huge, fang-filled mouth, and a black sphere took shape at an astonishing speed.
The Tailed Beast Bomb was a tailed beast's ultimate technique, powerful enough to be called the nuclear bomb of the shinobi world.
With a bang, the black Tailed Beast Bomb shot from the Four-Tails' mouth. Kisame