User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-11560977-20131031121830/@comment-765166-20131031171320

There is no G-Rank in this game as this is the first game in its generation, which by tradition and pattern, all first games in its generation do not have G-Rank. So far I've only seen Rathalos, Rathian and Tigrex EX Armor Sets to exist in the game, and Banned may have explained things well about it. :)