Without a doubt, Venom is Spider-Man's nastiest nemesis. Like Spider-Man, Venom is super-strong and can crawl up walls. But what makes Venom so dangerous is his costume -- it's actually a living alien creature! Whenever Venom grabs someone, the costume shoots out energy-draining liquid that can overpower even the strongest hero. And because Venom hates Spider-Man more than anyone, he can't wait to grab Spider-Man and drain all the energy out of him!