Rock-Paper-Scissors Battle was a mini-game in which the players were tasked to beat Rohan Kishibe or Ken Oyanagi in games of rock-paper-scissors 3 times. At certain intervals the opponent forced the player to play rock-paper-scissors. The mini-game functions like a normal game of rock-paper-scissors. If the player won 1/3rd of the opponents health depleted, however if the player has lost the opponent got a point. Once the opponent gained 3 points the match ended and the player has lost. Once the player has filled up and used the mini-game gauge, a special rock-paper-scissors round played. The three choices got replaced with one, which the player always won.
The Rock-Paper-Scissors Battle tickets were available on the "Rock-Paper-Scissors Kid is Coming!" event related cards.