Original: The game is known by many names , including rock-scissors-paper , paper-rock-scissors , paper-scissors-rock , fargling , cachi-p ún , scissors-paper-rock\/stone , quartz , parchment , shears , jan-ken-pon , janken kauwi-bauwi-bo , - - and rochambeau .
Simplified: However , unlike truly random selections , it can be played with skill if the game extends over many sessions , as a player can often recognize and exploit the non-random behavior of an opponent .