A long time ago, when everyone was not a small submarine column, there was an old octopus castle, which always failed to operate normally, so the team members hit it, but when everyone went back to repair it, it had become an artificial coral. Appeared in Mr. Octopus Season 4 Episode 6.

Mr Octopus is the work of British silvergate, which signed a friendly contract with Russian Happy Ball Company. The film takes the ocean as the story stage and combines action, exploration, marine bioscience courses and preschool teamwork. The animation tells the story of an underwater expedition composed of eight cute little animals.

They live in the mysterious base-Octopus Castle, and are ready to set out to solve the distress and eliminate the possible dangers at the bottom of the sea. Each animation episode is based on an adventure, and team members use their special skills to overcome dangers, explore the mysteries of the ocean and discover unknown creatures.