First things first. Not a "gamer", so pardon any gaps in this.
However. After a bit of research and a few sessions with this game mode - the actual story line is incredible. If only a Hollywood crew would pick up the story, it easily could make for a thrilling movie due to all the dimensions, plot twists, and various side characters - would be amazing if cast right.
Additionally, and bodybuilding related - has the thought ever occurred to the developers that after doing the "round" or missions over and over again, that fatigue would set in? These four characters must have the most incredible strength to be able to survive all they had.
(And yes of course, it's fictional. But still...)