User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-28303251-20151017210107/@comment-5569775-20151019110454

It can be done in around 30 minutes solo with the fully upgraded Black Fatalis CB, just saying.

As for soloing it, don't use the restraints on it until he starts flying, at which point you can knock him out of the air by using both. Make your way to the Dragonator when ever it's ready and possible, as the damage from it is helpful when soloing and it knocks it down which is helpful as well. If you have unlocked the Marcoal bring 1 for the second stage. Other than that just mount him and wail on his Head, Wings, and then the tail in the second stage.

Also knowing his attack patter helps and if you can gem in Negate Mud/Snow(takes 5 slots) even if just for fighting Gog, go for it. Good Luck.