The original boss monster challenged players to become the ultimate villains video game style bosses now boss monster 2 builds on the original in every wayr r an all new set of 160 cards boss monster 2 is playable as a standalone game or as an expansion to the core set dark heroes and hybrid heroes raise the stakes while epic spells and quotcyclingquot rooms give players more options and flexibility boss monster 2 features everything that made the best selling original a hit with play