Spier-Man has one of the best-known rogues galleries in comics. Spider-Man's most infamous and dangerous enemies are generally considered to be the Green Goblin,Doctor Octopus and Venom. Others include the Lizard, the Chameleon, the Hobgoblin, Kraven the Hunter, Carnage, the Scorpion, the Sandman, the Rhino, Mysterio, the Vulture, Electro, the Kingpin, Hydro-Man, the Shocker, and Morlun. As with Spider-Man, the majority of these villains' powers originate with scientific accidents or the misuse of scientific technology, and they tend to have animal-themed costumes or powers. At times these villains have formed groups such as the Sinister Six to oppose Spider-Man.