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70721 Kai Fighter is a Ninjago set released in 2014. It was released in the US and Canada in December 2013.


The main feature of the set is a jet piloted by Kai. It is mainly red, and has a long nose, at the front of which are two large gold blades. The cockpit is fitted in the middle of the fighter, and is covered by a large translucent windscreen. On each side of the font of the cockpit is a large red flap with flame detailing stickered on, and behind the cockpit, situated on top of the fuselage, are two flick-fire gold-tipped missiles. At the back of the jet are the wings. Each are composed mostly of black and red plates, with some red tiles and a gold grill piece on the top of each wing. The wings are situated horizontally at an angle from the fuselage. Also at the back of the plane are two tilted vertically-standing red fins, and beneath each wing, also at an angle with the fuselage, is a large, square air vent, composted mostly of red basic bricks and square red tiles. The back of the plane also has some small green elements mixed into the structure.


Kai's fighter was once a Nindroid fighter plane, but was converted into it's current form by one of the Techno-Blades and re-purposed by Kai. Kai then used it in fights against the new mechanical menace faced by New Ninjago City. Description This is a description taken from Do not modify it. (visit this item's product page)

Kai has taken over a civilian vehicle and used his Techno-Blade to turn it into an awesome red and gold Ninja Fighter! Take off and weave between the skyscrapers of New Ninjago City with Kai in the cockpit. Shoot the gold-tipped flick missiles into the path of the evil General Cryptor and evade blasts from his ground-to-air laser rocket launcher. Defeat General Cryptor then flip the wings back to engage speed mode and zoom away. Includes 2 minifigures with weapons and an accessory: Kai and General Cryptor.

  • Includes 2 minifigures with weapons and an accessory: Kai and General Cryptor with armor
  • Features 2 gold-tipped flick missiles, speed mode adjustable wings, wing blades, 2 powerful side jet engines and cockpit with space for a minifigure
  • Weapons include exclusive translucent red Techno-Blade, 2 swords and laser rocket launcher
  • Also includes special armor for General Cryptor
  • Fire the gold-tipped flick missiles
  • Flip the wings into speed mode to accelerate away from Nindroid attacks
  • Grab the red Techno-Blade from General Cryptor and save New Ninjago City
  • Measures over 4” (12cm) high, 10” (26cm) long and 13” (34cm) wide


  • The Ninja Fighter is very similar to Jay's Storm Fighter,but a little smaller with piece-count.

Minifigures Included