When 3 or more snakes appear in 15 free games, the gameplay feature of Boy King's Treasure is triggered. In the free game, when Boy King replaces the winning combination, the prize is 2 times, 3 times or 4 times. If two Boy King symbols are replaced in the winning combination, the multiplier is accumulated up to 16 times. Free games are played under the lines and bets that trigger the game. Scattered victory multiplied by the total bet. This feature can be retriggered.