Board Thread:Arrow discussions/@comment-807326-20171020051525/@comment-27700324-20171020130247

Diagonally33 wrote: Isn't Batman in Supergirl's world. They made some reference during season 2.



Supergirl Season 2 Episode 7: 'The Darkest Place'
My cousin worked with a vigilante once... Tons of gadgets, lots of demons."

Supergirl Season 2 Episode 20: 'City of Lost Children'
James Olsen: “People see this big guy in a scary mask and they run away, just like Clark’s friend.”

Winn Schott: “Oh, you mean… [Winn mimics Batman’s cowl points with his fingers], I feel like they’re more frenemies.”

Yep, though in this, they are only confirming the Bruce Wayne side on Earth One unlike Supergirl which full on confirmed Batman.