Magneto has a rivalry with a gas station attendant. Also the Fantastic Four help him rob a bank.
The Spider-Man 1981 series did the episode Web of Nephillia about a scientist turning into a spider creature then Spider-Man and His Amazing Friends had Attack of The Arachnoid which did the exact same thing!
Spider-Man thought taking episodes from Rocket RobinHood was so nice he did it twice! This time Spidey goes up against a reoccurring villain in Dr. Manta and tries to pretend an asteroid is an island.
The 1981 Spider-Man series introduced us to Goron, the man with weird eye powers and an elaborate backstory never to be explained!
I go over how the very weird Rocket RobinHood episode Dementia Five was turned into the Spider-Man episode Revolt in the 5th Dimension and all the craziness that led to it including Ralph Bakshi fleeing Canada.