Promo found in the magazine Tabletop Gaming of April 2018. Also came with Game Boy Geek 2018 Kickstarter Family Pack.

If you reach 0 Health for the first time in this game, lose all your VP, leave Tokyo, gain 12 health and continue playing. For the rest of the game, your maximum health is increase to 12 and you can't gain health anymore.

Part of the King of Tokyo series.