Boss Monster 2 - the Next Level Expansion (EN)Boss Monster 2 the Next Level Expansion 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 way! 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 "cycling" rooms give players more options and flexibility. Boss Monster 2