From publisher blurb:
One of the most classic and best-known rooms in the comic book genre is the illustrious training and combat simulator—better known as the Danger Room. Almost every super-powered being, hero and villain, has one. The combat simulator can combine realistic illusions, hard-light holograms, and matter re-materialization to simulate virtually any environment. A Danger Room provides a place for heroes to train and practice for upcoming missions.
A scenario involving the combat simulator offers benefits to both GMs and players. A session in the Danger Room allows heroes to practice their skills and powers without worrying about property damage or bystanders. Heroes can try alternate uses of their powers and experiment with how far they can push those abilities. The Danger Room serves as an excellent, easy way to introduce new players to the game by helping them learn the rules one step at a time. Finally, The Danger Room offers adventure opportunities such as when the base’s computer goes rogue, a villain reprograms the room into a deathtrap, or the heroes lure intruders into the room in a bid to defeat them.