Thunder Pants
From Starfy Wiki
The Thunder Pants (Japanese: かみなりぱんつ) is an item in Densetsu no Starfy 2. They are Squirt #1's favorite pants. Bawss gives them to Starfy in Pufftop (Stage 8-5). Starfy must hand them over to Squirt #1 through the top-left room from the door with Imadame. In return, Squirt #1 gives Starfy the Taisou Tights.