In the event, Black Jack’s rival Doctor Kiriko has turned residents into undead zombies using an unknown poison, and players must help Black Jack and Pinoko to defeat Kiriko and save precious lives. The Black Jack Invasion event runs from 23 March to 12 April 2020, featuring 16 new levels in three difficulties (Normal, Hard, and Crazy) inspired by the stories of the Black Jack original manga.
Black Jack cards will remain in players’ possession after 12 April 2020. Black Jack chests can be obtained through in-app purchases or by completing the special game event Black Jack Invasion. Until 12 April 2020, players of Crazy Defense Heroes can obtain three new Black Jack cards - the Black Jack hero card, Pinoko tower card, and Kiriko tower card - by opening Black Jack chests in the game.
