you can be one of the three fighters or a civilian

it was a normal day in gotham until a portal appeared and dropped deathstroke, batman and titan joker

Deathstroke: what the hell-

Titan joker: trys to hit batman

Batman: dodges help me deathstroke or he will also kill you too!

Deathstroke: hmph fine but only becouse im the only one who can kill you.

Titan joker: aww bats calling in reinforcements how cowardly! attacks them both

Civilians: watching scared