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Grumblebums are enemies in Skylanders: Swap Force. One of them however is a Skylander exclusive to the Academy TV series.

Different types of Grumblebums

Notable Grumblebums

Trivia

  • Grumblebums share the animations of Evilized Greebles.
  • During the battle in Evilized Kaos's mind, a thought bubble containing a Grumblebum appears. Unlike other Grumblebums, the image in the bubble wields a wrench instead of a club.
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