Gel Puffers are round, floating creatures native to Bryyo. They feed on toxic vapors put out by Fuel Gel, releasing any excess gas through the vents in their shells; this allows them to remain aloft. However, their constant exposure and proximity to the gel itself causes their shells to be weak and vulnerable to attack.
Metroid Prime 3: Corruption
Morphology: Gel Puffer
Consumes and emits Fuel Gel fumes. Explodes when ruptured.
The exposure to Fuel Gel has left the shell of the Gel Puffer highly susceptible to weapon fire. Gel Puffers have come to rely on the toxic vapors given off by Fuel Gel for sustenance. They process these gasses and then expel the excess to stay afloat. The brittle shell of the Puffer, while durable in appearance, is rather thin and easily damaged.