Supermariogalaxy13 is a YouTube pooper, a Source Filmmaker, and an Unterganger. He is also a huge Nintendo fan, as his username implies, and a former Brony. He is notable for his Hitler Visits Ponyville, where Hitler visited the fanon version of Equestria and was raped by the Molestia-verse Twilight Sparkle, who gave birth to the Furherfilly and Hitler later waged war on Pinkamena) and Hitler Visits Didney Worl, which combines his Waxinator-inspired YouTube poop style with Downfall parodies.