Mega-Bosses in Dark Souls The Board Game are covered on this page. These are the game's representation of the most powerful bosses that you come across in the video game. They come with their own tiles and combat takes place on these specifically designed tiles. A 'standard' game is run with a Boss and a Mini-Boss, a Mega-Boss isn't required to play the game, but adds another degree of difficulty if you want it after tackling the Mini-Boss' and Boss. Alternatively you can swap out one of these two bosses and simply replace them with a mega-boss if you're short on time and want the challenge.