Talk:The Final Battle/@comment-10093421-20131013072449/@comment-23.113.46.3-20131013195503

After the cutscene is done playing out and you get the achievement it'll send you to a retry screen similar to the one you get when you die a normal death in-game, and you can retry at either the last point you saved the game or the last checkpoint at an inn or rift. So, yes, it does do retry.