Incentives in Squid Game's "Ddakji"

At a subway station, a well-dressed man approaches Gi-hun and asks him to play a game of Ddakji. The game is won by flipping the other player’s card. There is both a positive and negative incentive in this game. If Gi-hun flips his opponent’s card, he wins SK ₩100,000 (USD $83). If his opponent flips Gi-hun’s card, he loses SK ₩100,000. Gi-hun is broke so pays by allowing his opponent to slap him in the face every time he loses.

Thanks to Dirk Mateer for the clip contribution!