General Information
Species Galvan
Home World Galvan Prime
DNA source Unknown
Body Humanoid Frog
Powers and Abilities
Abilities Extreme Intelligence
Enhanced Agility
Enhanced Reflexes
Small Size
Wall Crawling
Underwater Breathing

Brainstem is the Omnitrix's DNA sample of a Galvan from the planet Galvan Prime in Ben 12: Omnitrix Unleashed.


Brainstem is a small, frog-like humanoid with grey skin and big green eyes. Brainstem wears a red, grey, and black chest plate attached to a body suit down to the thighs with red and black gloves, as well as black strappings. 

The Omnitrix symbol is located on his back.

Powers and Abilities

  • High Intelligence- Brainstem has a very high intelligence, allowing Ben to think more critically and logically in this form. Brainstem's brain capacity makes Ben smarter about things he's never even seen before
    • Technological Skills- Brainstem works very well with machines, and can dismantle and build things as he pleases.
  • Small Size- Brainstem is small, which allows him to get through or inside places that most larger species cannot. 
  • Wall Scaling- Brainstem's microscopic pads on his skin allow him to climb walls.
  • Enhanced Jumping- Brainstem can jump several times his height to get to high places.
  • Universal Translation- Brainstem has been shown to be able to understand complex and even foreign languages just by hearing them.


  • Small Size- Brainstem's small size can make it hard for him to fight in certain situations.
  • Fragile Body- Brainstem's body is not very durable, being weak to even the basic of attacks from most species larger then him.






  • These are recolours of Kuro the Artist's 5YL designs.
  • Edits done by MonkiRussa.
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