Zap-jellies are predatory sea creatures that live in the brackish seas of the Unggoy homeworld Balaho.[1] They glow with a faint pink light and are a delicacy among the Unggoy population. The translation "Zap-Jelly" and the comparison of their appearance to High Charity may mean that this creature is taxonomically similar to the Medusa cnidarians (jellyfish) that are indigenous to Earth.


  • High Charity has been stated to look like a massive zap-jelly floating through space.


  1. Halo: Contact Harvest, page 186