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Set 6229 XT4 is a small foil pack set released in late 2012, portraying the villain XT4, who escaped during the Breakout.


  • Name: XT4
  • Type: Small Set
  • Set number: 6229
  • Subtheme: Villains
  • Release date: July 2012
  • Pieces: 39
  • MSRP: $8.99 (US)
  • Ages: 6-12
  • Instructions:

Product Description

The following is a product description taken directly from LEGO. View the source here

Teach the heroes the meaning of tough with XT4!
Attention heroes! XT4 has escaped from the Hero Factory and fled to his home planet, Mechna. It won't be easy to cuff any one of his 4 arms, equipped with razor disc slicers, 2 striking blades and a laser slicer! Be extra careful around this heavy-metal robot!

*Features cyborg eye, razor disc slicer, 2 striking blades and laser slicer
*Highly flexible and poseable elements
*Includes unique code worth 200 game points for LEGO Hero Factory BREAKOUT game online at
*Defend XT4 against the heroes with his 4 slicing and striking arms!
*Battle with the hero 6221 NEX!
*Combine with 6221 NEX for an even bigger model!
*Stands over 6" (17cm) tall!

Set Information

The set's foil pack

The set consists of 39 pieces.

By combining pieces from XT4 with pieces from 6221 NEX, one can build a non-canon combination model.


The set features the Razor Disc Slicer, which can spin around, and the Laser Slicer, which has two claws that can move forwards and backwards. On the foil pack's front art's background shows Julius Nex, a Hero from the Nex set and who is chasing after XT4 in Mechna.


The set includes a yellow head piece, which has a red piece attached to it for an eye. It also has a Hero Core. Printed underneath the Core is a code called a Hero Code, which could be entered in an online game called Breakout in in 2012, to earn 200 Hero Points. The Hero Core is not used in XT4's construction, but can possibly be placed on any of his armor pieces for storage.