Battle the Demogorgon and travel to the Upside Down!
The Demogorgon, also known as the Monster, was a predatory humanoid creature that entered Hawkins, Indiana in November 1983. The creature originated from the parallel dimension known as the Upside Down. When Eleven, a child test subject from Hawkins National Laboratory with psychokinetic abilities, made transdimensional contact with the creature, a gate between dimensions opened at the lab. The creature then set foot in Hawkins, and began hunting, killing, and kidnapping various local townspeople.