Ninjago Wiki
Were you looking for the set?
“R.E.X. And could you have a little sympathy? Sold her so I could buy this place. As you can see, I'm trying to make an honest living.”

R.E.X. is the personal aerial vehicle of Ronin, used for combat and escape. It also doubles as a submarine.


Shadow of Ronin (non-canon)

After Ronin stole the ninja's memories atop Spinjago, he used the R.E.X. to escape.

Ronin would use the R.E.X. to escape the ninja after his mech's destruction.

After his final defeat at the ninja's hand, Ronin called on the R.E.X. to escape yet again.

Stiix and Stones

Ronin kept R.E.X. under his store in Stiix for use as an emergency escape, though claimed that he had sold her to purchase the pawnshop. Such an emergency came when Morro and the ninja surrounded him demanding the Scroll of Airjitzu and he grabbed hold of the airship as it flew upwards. However, Morro used his Wind to knock the mercenary off R.E.X. and claimed the scroll for himself.

Ronin eventually reclaimed his airship and flew to where Kai was becoming trapped by Strangle Weed, offering him a ride in exchange for something. When the Fire Ninja was unable to provide anything, Ronin flew off, though returned when Kai thought of something. He then dropped the Master of Fire off in Stiix, then left in R.E.X.

The Temple on Haunted Hill

After being bribed by Nya, Ronin flew her to the Samurai X Cave to retrieve her samurai gear.

The Crooked Path

Upon returning to Steep Wisdom after claiming the Sword of Sanctuary, Ronin used the time to clean R.E.X.. Later when he stole the sword, he activated the ship's autopilot as a decoy while he escaped down the river.

Later after Ronin was betrayed by Morro, he sent R.E.X. to save the ninja, along with a recorded apology, and the real location of the tomb. However, he also gave the airship to them as an apology for his actions.

Grave Danger

The ninja used the ship to travel underwater to the Tomb of the First Spinjitzu Master. Unfortunately, when they got there, R.E.X.'s autopilot programming kicked in and she submerged, leaving the ninja with no way out and unarmed as they left their Aeroblades in her.

Curseworld, Part I

Ronin used her to travel to Stiix and dumped his profits within her on Morro, who was levitating his shop with the Wind.

Public Enemy Number One

In order to pursue and capture Kai and Nya, Ronin flew in R.E.X.. He used R.E.X.'s special hologram device to trap them in a "dead end" though it was really just a hologram.


  • Blasters - The R.E.X. has double blasters in front of it used to battle opponents by shooting missiles.
  • Flight - R.E.X. can travel long distances by flying.
  • Coin Storage - R.E.X. is able to store a massive amount of coinage.
  • Submarine - R.E.X. is capable of transforming into a submarine. Additionally, its thick glass makes it possible to dive deep into the ocean.
  • Auto-Return - When R.E.X. reaches its destination, it will initiate auto-return.
  • Airjitzu Launcher (set only) - Near the back of the machine, an Airjitzu launcher is located to enhance the user's Airjitzu ability.



Ninjago: Masters of Spinjitzu

Season 5: Possession

Season 6: Skybound

Video games


  • It is usually summoned by the whistle of the owner, Ronin, to travel out of danger.
    • It is currently unknown if the whistle can only work for Ronin or to everyone else in Ninjago.
  • In the subtitles of Shadow of Ronin, its name is mispelled as "Reks."


In Ninjago: Masters of Spinjitzu

In LEGO Ninjago: Shadow of Ronin


Ninja vehicles

Lloyd: Golden Mech · Green Ninja cycle · Jungle Raider · Destiny's Shadow · Ninja Nightcrawler · Titan Mech · Racing bike · Lloyd's Race Car
Kai: Blade Cycle · Fire Mech · Kai Fighter · Prototype X-1 · Rocket boards · Super Bike · Katana V11 · Destiny's Wing · ATV · Mech Jet · Golden Dragon Raider
Jay: Storm Glider · Lightning off-roader · ElectroMech · Ghost Taker GT · Lightning Bike · Flying speeder · Blue Dragon · Sub car · Golden Dragon Motorbike
Nya: Samurai Mech · Proto Sam-X · D.B. Express · Nya's bike · Samurai VXL · Battle Wagon · Nya's bike (fantasy) · Ninja Tuner Car · Samurai X MECH
Cole: Tread Assault · Earth Driller · Earth Mech · Roto Jet · Ghost Cycle · Rock Roader · Rock Cycle · Speeder Cars · Stone Mech · Dragon Racer
Zane: Snowmobile · NinjaCopter · Ice Mech · Titanium Ninja Tumbler · Snake Bike · ShuriCopter · Zane's jet · Jungle surfboard · Golden Dragon Jet
Wu: Wu's horse carriage · Wu's ship
P.I.X.A.L.: Samurai VXL · Samurai X Mech
Team: Gliders · Destiny's Bounty · Ultra Sonic Raider · Ultra Stealth Raider · Land Bounty · Ninja hang gliders · Ninja's catamarans · Jungle Choppers · Hydro Bounty · APS suits · Submersible combat crafts · Mini submarines

Villain vehicles

Skulkin Vehicles: Skulkin mechs · Skull Truck · Turbo Shredders
Serpentine Vehicles: Bite Cycles · Fangpyre Robot · Fangpyre Trucks · Fangpyre Wrecking Ball · Rattlercopter · Serpentine Bus · Serpentine Express
Stone Army: Garmatron · Hoppers · Samurai Mech · Tusk · Warrior Bikes
Nindroid Army: Arcturus · Attack gliders · Destructoid · Double laser cannons · Golden Master's mech · Hover-Copters · Hover Hunters · Jet fighters · Lunar rovers · Nindroid jet fighters · Nindroid MechDragon · Security Mechs · Security tanks · Nindroids' jetpacks
Anacondrai Cultists: Anacondrai Battle Mechs · Anacondrai buggies · Blade-Copters · Chenosaurus · Chen's blimp · Chen's ferry · Clouse's stone mech · Condrai Crushers
Ghost Warriors: Chain Cycle · Ghost ship · Mech-enstein
Sky Pirates: Misfortune's Keep · Raid Zeppelin · Sky Shark · Pirate jet
Vermillion: Iron Doom · Vermillion Invaders · Vermillion Racers · Machia's ship
Sons of Garmadon: Oni Bike · Oni Chopper · Stone Booster Bike · Street bikes
Dragon Hunters: Destiny's Wing · Dieselnaut · HunterCopter
Unagami's army: Empire Dragon · Noodle Truck of Crime · Speeder Cars
Keepers: Battle catamarans
Kryptarium inmates and henchmen: Ronin's monster
Merlopians: Kalmaar's chariot
Vengestone army: Crystal hovercraft

Other vehicles

Cliff Gordon's yacht · Cyrus Borg's private helicopter · Firstbourne Mech · Garbage trucks · Jalopy · Mary Louise · NGTV helicopter · Noodle trucks · Postman's bike · R.E.X. · Ronin's Mech (non-canon) · Salvage M.E.C.

The LEGO Ninjago Movie vehicles

Secret Ninja Force: Destiny's Bounty · Earth Mech · Fire Mech · Green Ninja Mech Dragon · Ice Tank · Lightning Jet · Ninja Helicopter · Water Mech
Shark Army: Flying Jelly Subs · Garma Mecha Man · Piranha Mechs · Manta Ray Bombers · Shark Mech