メタリック軍曹, Full Metal Jacket
Of all of Muscle Tower Goku039s second challenge to get past Sergeant Metallic a.k.a. Full Metal Jacket was by far the most difficult task. Since Metallic was a robot he was very hard and in all truth the only reason Goku won was because the major039s batteries ran out of power. At one point in the anime Goku accidentally blows off his head using a Kamehameha but even that doesn039t stop Metallic from continuing its039 rampage. Even without a head and eventually losing both wrists he tried to repeatedly stomp Goku flat. It was the first time in the series someone was actually able to take a couple hits from the Saiyan warrior and survive. Metallic appeared for a couple seconds in Dragonball GT firing his fist off and causing major damage to a building. Stylistically he is an obvious tribute/parody of The Terminator played by Arnold Schwarzenegger.