15 Video Games That Did Something Unique With Their Genre

ARMS 

ARMS is unique because of not only the central gameplay mechanics (which, ridiculously enough, involve extendable arms controlled with motion controls, meaning the actual gameplay is far different than the up close and personal style of melee combat in most other fighters), but also because of its unique perspective, which is basically the equivalent of an over the shoulder third person game. It adds entirely new strategies and considerations regarding placement and the like to fighting, all of which is also helped by the stages themselves being a dynamic part of the fights.