Peronthious
Member
Thread title and image shamelessly stolen from RPS.
As near as I can tell, GDitS is sort of a 2D run-n-gun RPG type thing, but with the graphical style of Spelunky and when you kill enemies that you don't already have you can play as them. The individual characters are pretty diverse; each have individual sprites and unique powers, some have special traits, and some have cooldown times on the powers so you can't rocket around killing everything.
Play it here.