Astro Boy: Tetsuwan Atom - episode 9 - 31 May, 2003

Deep in the mountains, there is a valley where broken robots are piled up. People posing as robot collectors are illegally dumping robots that should have been reclaimed. One robot rose from the pile. As if to make up for the missing parts, the robot attached various discarded parts to its body, making it look like Frankenstein's monster. The robot shouted unintelligible words as it headed towards the town, and is attacked by the police and the robot squad, but secretly escapes from the ground. The robot goes to a boy named Taku, who is in the same school as Atom. The robot was the one from Taku's place, and was wandering around, calling for him, looking for his good friend. Taku, on the other hand, is looking for Al, who was supposed to have been taken away by a collection agency, and is reunited with him, but he doesn't recognize him because of his changed appearance. On the contrary, he runs away when he sees Al in his horrible form. (Source: Wikipedia)