JACKSON, NJ — A $1 billion investment and two new roller coasters are coming to Six Flags Great Adventure ... to the area near the Joker and Harley Quinn rides, officials said.
In addition, Six Flags unveiled plans to update several existing rides with popular DC Superheroes and villains, such as Supergirl, Green Lantern, Batman, The Joker, Poison Ivy, and The Penguin.