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