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Customs Article

This article describes a custom creation, custom theme, or other fan material, made by a Brickipedia contributor. It has never been, is not, and will not be officially released.

Monster Arm Showdown is a set in Adventures of John and Jack theme.


This set includes over 15 Crystals, Dark Matter Pool, 3 Pickaxes and 2 Dynamites.


Monster Arm is on a Rampage! Help John Jack and Max defeat this crystal eating monster! Dig red crystals, throw them on him and push him to the pool of Dark Matter! Escape with R2-D2 and a red diamond crystal. You control the action!

  • Includes 4 minifigures: John, Jack, Max and R2-D2 and 1 figure: Monster Arm

The Novel

In the John and Jack novel written by Rople, this cavern is appearing on Chapters 1-2, before it collapses.

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