Dragon Ball 1x36

General White’s voice resounds throughout Muscle Tower. He provokes Goku as he ascends to the uppermost floor, where the mayor is. Goku defeats the soldiers on the second floor, and advances on to the third. The third floor was protected by the immortal giant, Sergeant Metallic! Goku has a hard battle against Metallic, who rises up again no matter how many times Goku knocks him down. He won’t stop, even after having his head blown off with a Kamehameha! It turns out he is a robot!! However, Metallic stops just as Goku is in a pinch. His battery had run out.