Creativity Conduit

The Creativity Conduit is a treasure in. It is actually a.

Collecting the treasure
The Creativity Conduit is inside of the Horned Cannon Beetle at the center of sublevel 3 of the Subterranean Swarm. To collect this treasure, you must first defeat the Horned Cannon Beetle; then, throw 7 Pikmin at it.

Trivia

 * The name "Creativity Conduit" references the game best associated with the SNES mouse: Mario Paint, an art game which has a heavy emphasis on "creativity".