The MSN-06S-2 Sinanju Stein comes from Mobile Suit Gundam Narrative. It is piloted by the title’s antagonist Zoltan Akkanen who is voiced by Yuichiro Umehara. With a cost of 2000, it comes equipped with Beam Saber as its melee weapon, a chargeable High Beam Rifle for the main projectile, and Bazooka as the sub projectile. Its Special Shooting command launches a rapid-fire from the High Beam Rifle, while Zoltan can also use the Special Melee command to summon a group of Geara Zulus; one of them piloted by Erika Yugo.
Ever since its launch in October 2018, Extreme Vs. 2 has been receiving an almost-monthly pace of updates that add even more playable mobile suits into the already expansive roster—currently standing in at over 190 units. There was a long pause after the February 2020 update that added Wing Gundam Fenice, but Bandai Namco seems to have restarted the pace last month on July 2, 2020, when they added Gundam 00 Diver Ace from Gundam Build Divers.
Mobile Suit Gundam: Extreme Vs. 2 is the latest arcade game available in Japan and Hong Kong. Earlier this year, Bandai Namco announced that a newer arcade title in the Extreme Vs. series is also currently under development.