Poison Ivy, the Joker, Harley Quinn, the Catwoman, Wonder Woman, the Batman and Robin are featured as player possibilities, each with alternate versions amongst the six featured alternate Earth scenarios. In this reality, the Monitors had access to energy constructs that were able to record messages and transmit communiques across the Multiverse. They also forged orbs that glowed with light and served as a guide across the alternate universes as well as serve as a communicator with the Monitors. On their homeworld of Nil, there were spatial engines that could be used to help prevent large scale universal breaches that would damage the Multiverse. Arrowverse and other series In 2014, DC CCO Geoff Johns confirmed that the universe present in the publisher's television series, Arrow and The Flash, is separate from the one being built in their films with Man of Steel and Batman v Superman: Dawn of Justice. Johns explained DC's difference in approach to Marvel: "We look at it as the multiverse. We have our TV universe and our film universe, but they all co-exist. For us, creatively, it's about allowing everyone to make the best possible product, to tell the best story, to do the best world. Everyone has a vision and you really want to let the visions shine through... It's just a different approach". The Multiverse concept is explored during the second season of The Flash, which is pivotal to the conflicts between Barry Allen (Grant Gustin) and rogue speedster Hunter Zolomon (Teddy Sears). The access points to the Multiverse are portals that were created as a result of an exploding singularity over Central City during the season two premiere "The Man Who Saved Central City". In the episode "Enter Zoom", it is revealed that Earth-2's version of the Green Arrow is Robert Queen (Jamey Sheridan) instead of his son Oliver (Stephen Amell), who presumably died on the boat accident. Arrows season eight episode "Starling City" reveals that Earth-2's Starling City has another green-hood archer, The Hood, who is a heroic doppelgänger of Adrian Chase / Prometheus, and its Dark Archer is not Malcolm Merlyn but his son Tommy. In the season two finale "The Race of His Life", Zoom reveals that the universe in which that of Arrow, The Flash and Legends of Tomorrow sets is positioned in the Multiverse's center, and from there one could travel to any of the other infinite numbers