An expansion in the Dungeon Twister series of games. As all expansion, it can be played as a stand-alone game (if you know the rules from the basic game, available on the game website and you have a set of card). You can also combine it with the basic game and other expansions in order to have a different set of team and room each time you play.
This particular expansion is focused on giving character with muscles. They move really fast, but they are good at fighting.