Board Thread:Episodic and Issue Discussion/@comment-47881-20131118225102/@comment-5188108-20131122205059

With the alternate costumes, you have to bear in mind they are purely reskins, i.e. they change the texture, not the model or animations. So no high collar, and no capes for Batnightwing (which I love BTW).

Dioramas give you a rotatable, zoomable freeze-frame of one of the bosses fighting one of the heroes. Some of them also feature one of the non-playble characters helping out e.g. Lex Luthor vs Superboy and Superman. To unlock each diorama you need to find either two or three pieces, depending on how many characters feature.

As you complete each of the five regions, you also unlock concept art.