Revenge of Monster Island adds the setting of Tokyo city to the Monster Island game. It includes the landscape of the city as well as its various military and civilian forces. There are rules for urban monster fights, and new powers for monster creation.The game is an expansion to the Monster Island series, and requires both Monster Island and Escape from Monster Island to play. For UFO attacks on Tokyo, Invasion of Monster Island is also required.Expands: Monster Island and Escape from Monster Island (requires both) Invasion of Monster Island - BoardGameGeek