Birth of the Ten tails Jinjurinchi

Minato joins the offensive against Obito. He can no longer teleport directly to Obito because the Flying Thunder God seal has disappeared from his body, so he must engage him directly. Just before they clash Obito, having until now struggled to control the Ten-Tails' power, finally masters it and strikes at Minato. He severs Minato's right arm and plants a Truth-Seeking Ball on him, which Tobirama teleports away before it detonates. Minato, the Second, Naruto, and Sasuke coordinate their efforts to attack Obito with Flying Thunder God Mutually Instantaneous Revolving Technique, but Obito emerges without damage. What's more, Minato's arm has not regenerated, indicating that Obito's Truth-Seeking Balls can nullify the advantages of the Impure World Reincarnation.

Minato and Naruto combine their power.

Obito traps the Alliance in his own barrier and prepares to destroy them all with a barrage of Tailed Beast Balls. With little time to act, Naruto forms a plan: he and Minato link their respective Kurama's chakra – which networks in all of the Allied forces that Naruto has shared its chakra with – and lets Minato teleport all of them out of the barrier. Minato is very impressed by Naruto's quick-thinking and says he wishes he had more of a chance time to talk to him. Naruto explains there's no need as he's already met Kushina and heard everything. Minato is moved to tears with pride.

Minato and Naruto attack Obito.

Having learned that Obito is susceptible to senjutsu, Minato prepares for an assault while Naruto enters Sage Mode. They both then enter Tailed Beast Mode and attack with a combined Rasengan, breaking Obito's defence and forcing him to manifest the Ten-Tails' tree form. They evade the tree's roots, but Minato's chakra levels are severely depleted. He is forced to keep his distance and watch as Naruto leads the Allied Shinobi in another assault against Obito. When the Alliance starts to strip the tailed beasts from Obito's body, Minato helps Naruto pull out the fragments of Kurama's chakra Obito has taken, and ultimately they succeed.

Minato stops Kakashi from killing Obito.

Obito is unable to move after his defeat and Kakashi moves in to kill him. Minato stops him, having sensed Obito's change of heart while he was removing Kurama's chakra. While Naruto and the Allies leave to confront Madara, Minato and Kakashi stay with Obito. Obito reflects on his actions and decides he has done terrible things, which he wants to make amends for by using the Samsara of Heavenly Life Technique to revive those he's killed. While he is forming the hand seals, Black Zetsu emerges from the ground and takes control of his body. Minato and Kakashi are confused, so Obito explains he has been forced to revive Madara instead. Black Zetsu also tries to take Obito's Rinnegan to deliver to Madara. Minato and Kakashi move to stop it, but can't do anything without harming Obito. Before Black Zetsu assumes full control of his body, Obito pleads with Minato and Kakashi to destroy the Rinnegan at any cost.

Minato unwillingly seals Yin-Kurama into Black Zetsu.

Right before Minato can attack, Yin-Kurama alerts him to Naruto's loss of Yang-Kurama. He is soon brought to Minato's side, with Sakura performing emergency life support and Gaara explaining that the only chance of saving Naruto's life is if he is given Yin-Kurama. Just as Minato starts the transfer, Black Zetsu intercepts him and takes Yin-Kurama for itself. Madara arrives immediately afterwards, now the Ten-Tails' new jinchūriki and intent on taking Obito's Rinnegan. Minato enters Sage Mode and attacks him alongside Kakashi, but they are easily repelled and Minato loses his other arm. Before Madara can take what he wants, Obito reasserts control of his body and, with some help from Kakashi, escapes with Naruto and Sakura using Kamui.

Minato intercepts Madara's attack on Guy.

Might Guy arrives, ready to give his life to defeat Madara. With his energy and arms gone, Minato can do very little to help directly, but he can at least give Guy an opening. He instructs Rock Lee to throw one of his Flying Thunder God Kunai at Madara's Truth-Seeking Balls, which Minato teleports to in order to catch several and escape with them, allowing Guy to initiate his assault. Minato, meanwhile, teleports to the Hokage Rock where he remains with the inert Truth Seeking Balls. He later witnesses the others' failure when the Infinite Tsukuyomi is cast and Konoha's villagers are entwined by the God: Nativity of a World of Trees. He attempts to cut some people from the tree, but has no success as another branch simply forms and imprisons them again.