'Destroy Tokyo Tower' is a campaign sourcebook for 'Super Giant Monster Showdown'. It includes 25 different scenarios with maps showing city card layouts for each, a handful of unique new Defense Units and 25 new Event cards. Scenarios include 'The Great Monster Egg War' where a giant egg falls from space and will eventually grow into a baby monster, and 'Terror at the North Pole' where the monsters play as 2 teams - the Ice monsters goal is to change the entire map into a glacier, the other team's goal is to melt all the ice on the map. - BoardGameGeek