For the costume headgear, see Jakk (headgear).
RO Jakk
Class Normal
Level 63
Size Medium
Type Formless
Element Fire
Natural Habitat Geffen Tower

Jakk is a strange-looking monster with a pumpkin head and wearing a tuxedo. Nobody knows where it came from, however according to the monster scholars it might be a familiar of a demon.[1] A spooky, pumpkin-headed monster that dresses in a slick formal suit. It's been known to invade Prontera on St. Hallow's Eve in the past.[2]

There is also a version that comes out during the Christmas season.



  • Jakk is inspired by the jack o' lantern.[3]


  1. iRO Monster Library 2005 Mar.
  2. Prontera Monster Encyclopedia
  3. Jack o' Lantern 2013 Aug.

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