Sergeant Metallic, better known as Full Metal Jacket, stands as one of Goku's toughest opponents during the Muscle Tower arc—and honestly, the fight's outcome had less to do with raw power and more to do with lucky timing. Since Metallic is a robot, traditional attacks barely faze him. Even when Goku blasts his head clean off with a Kamehameha, the sergeant keeps coming, trying to stomp Goku flat with relentless mechanical aggression. He loses his wrists, loses his head, and still won't quit. What made this fight genuinely memorable was that Metallic actually managed to take repeated hits from Goku and keep fighting—something virtually no one else had pulled off at that point in the series. Ultimately, Goku only wins because the robot's batteries finally die out.
The character made a brief comeback in Dragon Ball GT, where he fires off his fist and levels a building, though it's just a quick cameo. Stylistically, Metallic is an obvious Terminator parody, complete with that unstoppable Arnold Schwarzenegger vibe.
Content compiled by AnimeList.moe from publicly available sources.
