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The Roto Jet is a small bomber based on a type of attack plane created in Karlof's homeland, Metalonia. It was said to have enough firepower to take out an entire army. During the Tournament of Elements, the Elemental Masters, who were being forced to work in Chen's noodle factory, designed a "noodle-making machine," which was really a Roto Jet. The group used the jet to escape the factory, which would soon allow them to disrupt Chen's ceremony.
After the Anacondrai Cultists transformed into fake Anacondrai, they departed from Chen's Island with Blade-Copters, while Chen stole the Roto Jet and flew it off himself. During the Second Serpentine War, Chen flew the Roto Jet during the battle at the Corridor of Elders. It is unknown what happened to the jet following the battle, as the Anacondrai cultists were banished to the Cursed Realm.
While brainstorming ideas to break themselves out of the noodle factory, Karlof mentioned how he used to work on Roto Jets and suggested they build one out of machine parts. Although Cole was skeptical about how a jet would be any use underground, the other prisoners agreed and began finding parts, while Karlof and Zane created a blueprint.
By the time the remaining Elemental Masters were taken to the noodle factory, the Roto Jet was nearly finished, constructed under the guise of it being a noodle machine. Jay began working on the vehicle as well and by the time Chen defeated the Green Ninja, the rotating barrel was operational. Upon receiving an large order of noodles for the banquet, Zugu decided to check on the "noodle maker," only to find the Roto Jet. Cole quickly hoped in and began firing at incoming cultists. With help from the other Elemental Masters pushing the jet, they managed to escape the factory.
After the Anacondrai cultists were transformed into fake Anacondrai, they departed from the island using Blade-Copters, while Chen stole the Roto Jet, leading his followers to Ninjago City to wreak havoc.
After the Anacondrai cultists captured Pythor and made the transformation spell permanent, they set off into Ninjago. As Chen taunted Pythor, he departed via the Roto Jet along with his army.
Later, he had Eyezor, Zugu, Kapau, and Chope carry the Roto Jet into the Corridor of Elders, with Chen sitting inside of it. When the battle at the Corridor commenced, Chen flew the Roto Jet, eventually abandoning it as his army overwhelmed the Elemental Masters. As he stepped out of the cockpit, Chen was confronted by his daughter Skylor.
After the Anacondrai generals were freed from the Cursed Realm, they banished Chen and his army there. The status of the Roto Jet following the battle is unknown.
Shadow of Ronin (non-canon)
The flying Boulder Blaster was constructed in secret by Cole and Karlof while they were imprisoned in Chen’s underground noodle factory. Once completed, they used it to break out of the factory. The Boulder Blaster was equipped with a launcher capable of firing eight missiles and adjustable wings. Chen later stole the Boulder Blaster to escape to NINJAGO Island.
Soar into the sky with Cole flying this awesome Boulder Blaster ninja airplane! Fire the airplane’s 8 powerful spring-loaded shooters at the evil Eyezor on the ground below. Take aim at the prison to blast open the door to Lloyd’s cell. You must triumph in the skies of NINJAGO® City and then display the limited-edition golden Kai Legacy minifigure to celebrate 10 years of LEGO® NINJAGO sets.
- 41. "The Forgotten Element"
- 42. "The Day of the Dragon"
- 43. "The Greatest Fear of All"
- 44. "The Corridor of Elders"
- LEGO Ninjago: Tournament (non-canon)
- Ninjago Rush (non-canon)
- LEGO Ninjago: Shadow of Ronin (non-canon)
- It is called the "Boulder Blaster" in the sets and "Boulder Bomber" in LEGO Dimensions.
- Cole is the last ninja (excluding Nya, who was not a ninja at the time of this vehicle's creation) to obtain a flight vehicle.
- Just like the Earth Driller, the set version is called Cole's Boulder Blaster, but it wasn't ever specifically Cole's.