For Pyukumuku's "Surprise Fist" attack, what happens if Rock-Paper-Scissors ends in a tie?
You have to play R-P-S until there is a winner; you cannot end it in a tie.
Source: Unbroken Bonds FAQ (2019-04-19), TPCi Rules Team (2019-05-02)

Relevant cards

Note: All applicable cards may not be listed below.
SM10_53
SM10_53