• He originated from a Penny Arcade comic strip satirizing Rise of Immortals before it became Battle for Graxia.
  • He was released on April 1st, 2012 for an April Fools' Day event.
  • Karapyss is currently the only Immortal who does not cost any Petrocoins.


  • Pirate skin is possibly inspired by Davy Jones from Pirates of the Caribbean.
  • Scarab skin closely resembles the Garthim. The similarity is most evident in the crescent shape in their carapace. Coincidentally, The Dark Crystal, the movie where this race came from, also involves crystals like BfG's lore.