I recently downloaded the new UFC game demo from EA Sports. EA is in a weird situation here, they want to make a game that is a simulation of the sport like their other games. But the problem is, the UFC is a fringe sport and you want to attract as many new players as possible.
Of course you need to make the game fun and quick to get into, but when you play the demo you quickly realize that is not the case. I am an old school gamer, played tons of wrestling, boxing and fighting games, even played the old UFC games.