How would I setup my camera to get a result that looks like Enter the Gungeon?

Enter the Gungeon is a 2d game made in a 3d world used with illusions and Orthographic camera I think, whenever I try to setup my game like it my sprites start getting wonky.

https://d1u5p3l4wpay3k.cloudfront.net/enterthegungeon_gamepedia/f/f8/SS_1.png

This helped me