Spider-Man: The Animated Series (season 4, episode 3)

“The Black Cat“ Release date: 02-15-97 Plot: The Kingpin and Dr. Octopus blackmail John Hardesky into revealing a secret super-soldier formula by making threats against Felicia. After Hardesky reveals his secrets, Landon is able to recreate and improve the formula for the Kingpin. The Kingpin uses the serum to transform Felicia into a “black cat“, and forces her to carry out his crimes until he can create more serum. Hardesky want to know if Felicia have someone in her life, and girl has confess that she’s is in love with Spider-Man. Based on The Amazing Spider-Man #194 and Spectacular Spider-Man #74