Balloon Fish

Balloon Fish are a gameplay mechanic in Octo Valley, and Octo Canyon

Description
Balloon Fish resemble pufferfish due to their round appearance, small fins, and ability to expand. However, they are simply white balloons modeled after pufferfish, with a small splatter of Agent 3's current Ink color on the top and a small, similarly colored Ammo Knights logo on the bottom.

Shooting a Balloon Fish with any amount of Ink will cause it to burst, instantly covering the area around it and splatting any enemies caught in the blast. It quickly regenerates for repeated use.

Octo Valley

 * Octotrooper Hideout

Octo Canyon

 * Return of the Octarians