Beware of Robot

Goku and Krillin engage the Pirate Robot in a frantic battle across the underground port. Their punches and kicks prove ineffective against the massive machine's armored body. Krillin takes a hit to the face and retreats to watch with Bulma while Goku fights solo, delivering rapid headbutts to the robot's chin. The Pirate Robot responds by deploying built-in guns and gliding across the water to pursue Goku along the upper balcony.

Friendly Fire

While Goku leads the robot on a chase, Krillin and Bulma find a mounted cannon and attempt to help. Their missile misses the robot entirely and hits Goku instead, bringing down part of the ceiling on top of him. With Goku temporarily buried under rubble, the Pirate Robot turns its attention to Bulma and Krillin, chasing them through a corridor and up a staircase into a room filled with antique computers.

The Killing Blow

Goku digs himself out and tracks the robot to the computer room, entering through a window via Power Pole. He lowers Krillin and Bulma to safety, then waits for the robot to descend the stairs. As it reaches the bottom, Goku launches himself in a devastating aerial assault that destroys the Pirate Robot for good. General Blue, who has been watching from the shadows the entire time, is genuinely impressed by Goku's skill. He creates a fake directional arrow that sends Goku down the wrong path, then follows Krillin and Bulma as they descend into a well leading deeper into the cave.

The Pirate Robot battle is one of the most extended action sequences in early Dragon Ball, spanning two full episodes. The anime significantly expands the fight from its manga version, adding the cannon misfire, the computer room chase, and Goku getting his tail trapped under rubble. Every addition raises the tension and the comedy in equal measure.

The Cannon Backfire

Krillin and Bulma's attempt to help with the cannon is a masterclass in well-intentioned disaster. Their missile hitting Goku instead of the robot is both painful and hilarious, and it raises genuine stakes by removing Goku from the fight temporarily and leaving Bulma and Krillin defenseless against the pursuing machine.

Blue's Fake Arrow

General Blue's decision to create a fake directional arrow rather than confront Goku directly shows tactical intelligence. He has seen what Goku can do to the Pirate Robot and wisely chooses deception over combat, at least for now. The separation of Goku from his friends sets up the treasure room confrontation ahead.

The Pirate Robot's body design bears a visual resemblance to Saiyan armor, an interesting coincidence given that the Saiyan race has not yet been introduced in the story. The anime greatly extends this fight, adding Bulma driving a truck into the robot and the cannon sequence, neither of which appear in the manga.

General Blue's reluctance to enter the water at the episode's end reveals more about his character. In the Japanese version, his concern is about saltwater damaging his skin. The English dub adds a humorous bit about him forgetting to pack his bikini trunks, along with him admiring his own physique after removing his shirt.