"As it turns out, morals are a pretty expensive pet ta take care of." One she doesn't really have the money for.

As Ginko steps inside, the gate swings shut behind her, and the whole area shudders. Not particularly worried, Joker flops down onto the ground, legs folded beneath her and arms behind her head. "Just up a couple floors~!" she sings, and laughs. "Can ya guess what this used ta be before things changed?"

It should be pretty obvious, considering that the walls around them seem to be sliding down... or, rather, the two of them are sliding upwards.