In Japan the game is called jan-ken, you say "Jan-ken-pon!" when getting ready to throw, and the moves are guu (rock), choki (scissors), and paa (paper).
(FWIW, the *more* commonly used name in Germany is "Schere, Stein, Papier" (scissors, rock, paper). There's a *number* of alternative "names", however - which are said aloud when playing so as to "sync" the players.)
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