- You may be looking for the 2021 Legacy remake.
70737 Titan Mech Battle is a LEGO Ninjago: Masters of Spinjitzu - Possession set released in summer 2015. It features Deepstone Zane, Deepstone Jay, Jungle Samurai X Nya, Ghoultar, Bansha, a Skreemer, the Ice Aeroblade a Harpoon shooter, a small segment of the Samurai X Cave and two mechs; Zane's Titan Mech and Mech-enstein.
Get set for the ultimate Mech Battle as Zane’s Titan Mech takes on Blade Master Bansha’s Ghost mech – Mech-enstein! Place Zane in the cockpit and adjust the arms and legs and rotating torso for awesome battle poses. Fire the stud shooters and dodge the massive swords of the 4-armed Mech-enstein. Then take the action to the air with the rocket-booster backpack! Give Zane support with Jay and Nya, firing the spring-loaded hook shooter to try and topple the Ghost mech. Use all the cool Ninja weapons to stop Scythe Master Ghoultar getting into the Samurai X Cave and stealing the Aeroblade! Includes 5 minifigures with assorted weapon and accessory elements: Zane, Jay, Nya, Scythe Master Ghoultar and Blade Master Bansha.
- Includes 5 minifigures with assorted weapon and accessory elements: Zane, Jay, Nya, Scythe Master Ghoultar and Blade Master Bansha
- Zane’s Titan Mech features an opening cockpit, posable arms with titanium-style swords, posable legs and feet, rotating torso, rotating shoulder blades, rocket-booster backpack and 2 stud shooters
- Mech-enstein features an opening head/cockpit, adjustable shoulder armor, adjustable Ghost bones to hold a minifigure, 4 posable arms with huge Ghost swords, rotating torso, posable legs and feet, dual jet booster pack and translucent details
- Samurai X Cave features a spring-loaded hook shooter with a hook on a string and assorted elements: the Aeroblade, tools, computer and a storage barrel
- Also includes a Skreemer (attachable to minifigures) with 2 Ghost Katana weapon elements
- Weapon elements include Zane’s 2 golden shurikens and Aeroblade, Jay’s Deepstone Nunchuk, Nya’s 2 Katanas, Wrayth’s Scythe Ghost Master Blade and Bansha’s Ghost Master Blade
- Accessory elements include Deepstone armor for Zane and Jay and Nya’s Samurai X outfit
- Ghoultar minifigure features a ghost tail (new for fall 2015)
- Bansha minifigure features transparent ghost legs and ghost armor
- Fire the Titan Mech’s stud shooters
- Evade the massive swords of 4-armed Mech-enstein!
- Topple Mech-enstein with the spring-loaded hook shooter!
- Defend the Aeroblade in Nya’s cave
- Recreate your favorite scenes from the NINJAGO™: Masters of Spinjitzu TV show
- Zane’s Titan Mech measures over 7” (20cm) high, 3” (10cm) long and 6” (16cm) wide
- Mech-enstein measures over 8” (22cm) high, 4” (12cm) long and 9” (25cm) wide
- Nya’s Cave measures over 3” (8cm) high, 3” (10cm) wide and under 1” (1cm) deep
- Hook shooter measures over 1” (5cm) high, 2” (7cm) wide and 1” (5cm) deep 
- Nya's Samurai X suit in this set is the same one she wore for her set in the previous season, 70750 Ninja DB X. The only difference is that she has black shoulder pads instead of dark silverish-gray ones, and it contains two silver swords in the place of the previous two black ones.
- In 70731 Jay Walker One and 70738 Final Flight of Destiny's Bounty, Bansha's minifigure has a ghost "tail." In this set, she has legs, making this version of her "exclusive" to this set.
- This is the cheapest way to get Deepstone Zane.
- The Ghost mech's overall design is very similar to the mech Lord Garmadon used near the end of season two.
- This is the first Ninjago set to feature two mechs.
- The set includes Zane's first mech.
- Jay's nunchucks look similar to the Obsidian Nunchucks from Shadow of Ronin. However, the colors of the chain and the handles are reversed.