Spider-Man S03E04 - The Vanishing Doctor Vespasian/The Scourge of the Scarf

Dr. Vespasian, a green-skinned, wrinkled scientist, concocts a drinkable invisibility formula and uses it on himself and his dog, Brutus. 

 From his vantage point atop a building, Spidey watches as crowds form long lines to attend Saturday night Broadway performances. To the panic of the mass of people, the Moon becomes a psychedelic pinwheel that fills the night sky and dizzies and renders everyone- including Spidey- unconscious.