"It's ready! Alright Jiren, once you're out, I hope you don't regret giving me the time to finish this. This is what it looks like when the 7th universe unites. This is our Spirit Bomb!"
Realizing that even Super Saiyan Blue Kaio-ken was no match for Jiren, Goku decides to use his trump card: the Spirit Bomb. With help from most of Team Universe 7, Goku prepares a giant Spirit Bomb using the donation of energy. Though remarkably powerful, this attack was also near useless against Jiren, who effortlessly forced the energy ball back at Goku, striking him instead.
Though his attack was unsuccessful, being struck by the Universe 7's Spirit Bomb enabled Goku to break through into his deeper potential, achieving the Autonomous Ultra Instinct -Sign- state.
Master Roshi commented that, even though Jiren overpowered the attack, the Universe 7's Spirit Bomb would have defeated Jiren, had he been hit by it.
This is supported by Belmod stating that the energy of the Spirit Bomb had him worried (although he remained confident in Jiren). Arak also implied the energy ball possessed a good amount of energy, with Champa concerned that it seemed dangerous.
Video Game Appearances
"Lend me your energy! Haaaa! Kaioken! Hyaaaaah!"
This technique appears in Dragon Ball Z: Dokkan Battle as Super Saiyan Blue Kaio-ken Goku's Active Skill which can be activated once his health reaches below a certain threshold along with having other Team Universe 7 members on Goku's team.