Just hearing that a game has mashed two genres together does not generally excite me. It’s a useful shorthand, maybe, but there’s only so many roguelike deckbuilders I can take. Once in a while, however, a mashup comes along that makes me think, “well that doesn’t seem right,” and my ears perk up like a dog that’s learned how to spell walk. Today, that mashup comes in the form of Brokensides, a psychological horror beat ’em up where you play…