Also in 2011, eruption was removed. Construction for the new Funtime Slingshot replacing eruption started mid-June 2011 and was recently finished a few weeks after. In 2012, Great Adventure introduced "SkyScreamer", a Funtime StarFlyer, that soars riders in a circle at speeds over 43 miles per hour (69 km/h), that opened in the spring of 2012, along with bumper cars, flying elephants, and a musical themed scrambler that opened in the newly transformed area "Adventure Alley" (formerly Fantasy Forest area around the Big Wheel). On February 13, 2012, Six Flags Hurricane Harbor in New Jersey announced a new major water attraction "King Cobra", that is the first in the United States. The ride "Falls" at "Hurricane Harbor" was proposed to get a transformation, giving it a trapdoor release in 2012, but was later cancelled for the new attraction King Cobra. Furthermore in 2012, Six Flags Great Adventure removed two of its four Johnny Rockets food stands, one located in Plaza Del Carnival and the other in the Boardwalk. Both were replaced with a new food stand named Totally Kickin' Chicken. On August 30, 2012, Six Flags combined its Great Adventure Park with its Wild Safari animal park to form the Six Flags Great Adventure & Safari park, the second-largest theme park in the world, after Disney's Animal Kingdom. A 4th Dimension roller coaster was opened in spring 2016, then dubbed "Total Mayhem". The ride Cyborg Cyber Spin was to open in spring of 2018. Wonder Woman: Lasso of Truth, a large scale custom Zamperla pendulum ride, was opened in 2018. During the 2018–2019 offseason, El Diablo was removed from the park and is being relocated to La Ronde where it will reopen as Chaos. In June 2019, the park completed a 23.5 MW solar facility, the largest net-metered solar farm in New Jersey. It produces around 30 million kWh per year, equivalent to most of the park's electricity needs. The facility includes 11 MW of solar canopy over the carpark. The facility was announced in March 2015. On August 29, 2019, Six Flags announced the new Jersey Devil Coaster to be built by manufacturer Rocky Mountain Construction for the 2020 season. Six Flags suspended all operations across all their properties due to the COVID-19 pandemic in March 2020. In mid-May, the park announced that they would reopen the first Six Flags attraction, Safari Off Road Adventure, which reopened on May 30, 2020.