Spider-Man: The New Animated Series - Season 1 Episode 12 -

Spider-Man thwarts the escape of two twins with mind control powers who are freed during a transfer. Shortly afterward, other Spider-Man foes -- Pterodax, Kraven and Sable -- break out and go after Spider-Man. Peter reveals his identity to MJ just before Kraven kills her. Then a man offers Peter the chance for revenge ... and it turns out the whole thing is a mind game being played by the twins to control Spider-Man and get revenge on Kraven.