Kakuna was encountered at Vermilion Forest. Kakuna was found dangling from a tree along with other members of its species where Goh caught it. Weedle was found sitting on a tree Kakuna and the rest of the Kanto Bug-type Pokémon Goh caught were brought back to the Cerise Laboratory where Professor Cerise kept them in storage for Goh.
None of Kakuna's moves are shown.
At the Cerise Laboratory