From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Son Goku met Octopapa when he went the opposite way of Bulma Brief and Kuririn due to General Blue's trap. Octopapa was mad at Goku because he mistook him for a Spider, which made him want to eat Goku. Goku ended up frying him with a Kamehameha and eating him instead. He tasted like chicken according to Goku.
Octopapa appeared in Dragon Ball Z: Sūpā Gokū Den: Totsugeki Hen.
Octopapa appeared as part of the boss fight with Blue in Dragon Ball: Revenge of King Piccolo where he had been hypnotized by Blue.
- Takoashi Kōgeki – The Takoashi Kōgeki (タコあし 攻撃, Takoashi Kōgeki) was where he wrapped his tentacles around his opponent and then struck them against the surrounding wall. The attacked person had a shock run through their entire body and lost consciousness. He used this in the Pirate's Cave when he captured Goku and tried to eat him.