You end up in an alternate parallel universe when accidently you stepped into the cave portal in Gotham City that was prevented from the League. But to your shock this Gotham city was colorful, cheering and the atmosphere radiating a gloomy crime city aura was almost nil, as you look around suddenly a color balloon hits your hand and you grit your teeth and look at the way where it stroke you

"Which son of a bi-"

Your eyes widened as you saw the one and only Caped Crusader there giggling on a rooftop

"Hehehehe hello I'm Dark Knight"