The Ghost hand has a unique property: it can only be beaten by the rock hand. If a player chooses the Ghost hand and their opponent chooses rock, the opponent wins. However, if the opponent chooses paper or scissors, the player with the Ghost hand wins.

In SRPS:GE, we introduce a new element: the "Ghost" hand. This hand is a fourth, optional choice that players can select in addition to the traditional rock, paper, and scissors hands. The Ghost hand is represented by a subtle, predetermined gesture that is not easily detectable by the opponent.

Future studies could investigate the optimal strategies for playing SRPS:GE, including the use of mixed strategies and game-theoretic approaches. Additionally, researchers could explore the psychological and social implications of playing SRPS:GE, including the effects of bluffing, deception, and uncertainty on player behavior.

SRPS:GE also introduces psychological elements, as players must now consider their opponent's thought process and potential use of the Ghost hand. Players must balance their strategy with the need to deceive and mislead their opponent, adding a new level of complexity to the game.