After Agent 4 beats the Octo Oven, Marie says she did not expect the Octarians to have fully operational Octobsses at their disposal.
According to Sunken Scroll 24, the Octobosses have sentient tentacles implanted in their machines as a means of control. In the sketch, the complex chemical structure for the Octostomp weaponry can be seen.
During the Octo Canyon campaign, the Octarians revive the Octobosses using the stolen Zapfish. However, Agent 4 defeats them one by one before capturing DJ Octavio.
Trivia
The Octo Samurai is considered a "big bad boss by the Octarian rank-and-file troops" and its design looks more like a sumo wrestler than a samurai.[1]
