Pikagorotchi has light yellow skin, pink cheeks, light blue eyes, and curly light blue hair. There is a single yellow-orange horn sticking on top of his head. He wears a red scarf, and a yellow suit with dark spots. There is a ring with four blue drums attached to Pikagorotchi's back. This is a reference to Raijin, a god of thunder and lightning who appears in Japanese mythology.
Pikagorotchi's name comes from pikapika (ぴかぴか), an onomatopoeia for sparkling and gorogoro (ごろごろ) an onomatopoeia for a thundering sound. Together, these sounds represent thunder and lightning.
- In Tamagotchi Channel's Rainbow Hills artwork, Pikagorotchi is depicted as residing in the Pikagorotchi District.