Ben 10 Fan Fiction Wiki
Ben 10 Fan Fiction Wiki
General Information
Species Ukooma
Home World Prypiatos
Body Animalistic
Prey NRG
Powers and Abilities
Abilities Radiation Immunity
Liquid Coolant Emission
Sharp Horns
Sharp Teeth

Upsurge is the Nemetrix's DNA sample of an Ukooma from the planet Prypiatos and the predatory species of Prypiatosian-Bs.


Upsurge is a 10-foot tall animalistic alien with dark grey skin and thick arms and legs. Its skull is exposed and its bones protrude along the back of its neck and upper back in the form of horns. Light blue liquid runs down its back, stretching all the way to the tip of its tail. It has three fingers on each hand and five toes on each foot. Its eyes are red.

The Nemetrix symbol is on a red collar around its neck.

Transformation Sequence

Powers and Abilities

Upsurge is naturally immune to the effects of radiation.

Upsurge can emit a liquid coolant from its mouth that cancels out the radiation and intangibility of a Prypiatosian-B.


Firing too much of its liquid coolant can make Upsurge exhausted.




Its species' name, Ukooma, is a reference to Ōkuma, a Japanese town that went through a nuclear disaster in 2011.


  • This predator was adapted from the 10th Nemetrix predator concept design created by Tom Perkins in a collaboration between Ulti and Ultra.