First, the monster Luchador enters the ring, with or without power cards depending on how you play King of... games.
Second, the expansion introduces "challenge mode", with each monster donning a mask at the start of play. If you damage a monster in Tokyo (or New York) and that monster doesn't retreat, you can challenge them to a one-on-one match. Each of you will play a challenge card face down, and other players can contribute challenge cards to one side of the match or the other.
Whoever pulls off the best wrestling move — a "Giant Powerhouse perhaps? — wins the match and takes the other monster's mask, which is worth 2 VP as long as you hold it.
This mini-expansion requires a copy of King of Tokyo (2nd Edition)
