The attack by Unagami[1] (otherwise known as Unagami's invasion of Ninjago[2]) is a final battle where Unagami and the NPCs were unleashed to Ninjago City while Jay attempts to help Unagami by reuniting him with Milton Dyer.
History[]
Prelude[]

The Manifestation Gate
With the help of The Mechanic, Unagami was able to cross into the real world via the Manifestation Gate. The ninja (except Zane) entered Prime Empire to stop Unagami, but Jay was the last ninja standing.
Prime Empire unleashed[]

The Empire Dragon attacks Ninjago City
When the Mechanic opens the Manifestation Gate, the Empire Dragon enters Ninjago City with the Red Visors and Whack Rats, even though Okino, for example, also leaves the game. Unagami then seeks Milton Dyer in anger and destroys the city. Jay devises a plan to stop him and has to get Unagami to the top of Borg Tower. There, Unagami meets Milton Dyer.
Aftermath[]

Milton Dyer reforms Unagami
Milton Dyer explains Unagami his reasons for leaving him, resulting in Unagami's transformation into a child as well as the release of all trapped gamers and some NPCs from Prime Empire. Later, Unagami and Milton Dyer made Prime Empire to be safe for everyone.
Appearances[]
Ninjago[]
Season 12: Prime Empire[]
- 143. "The Temple of Madness"
- 144. "Game Over"
Season 14: Seabound[]
- 175. "Papergirl" (indirectly mentioned)
- 178. "Assault on Ninjago City" (mentioned)
Season 15: Crystalized[]
- 184. "A Mayor Problem" (indirectly mentioned)
- 187. "Ninjago City vs. Ninja" (indirectly mentioned)
- 192. "The Council of the Crystal King" (mentioned)
Ninjago Magazine[]
- 64. Final Battle!
Trivia[]
- This is the fourth time that a non-ninja character defeated the main antagonist, in this case, Milton Dyer, by being able to reason with Unagami.
- The other four main antagonists that were not defeated by any of the ninja were Pythor, who was eaten by the Great Devourer before the attack of the Great Devourer, Chen who was defeated by the Anacondrai generals in the Second Serpentine War, and the Time Twins, who were revealed to have been defeated by Wu after "Lost in Time," as revealed in "Golden Hour."