In the shell game

Ghost In The Shell - The Game
— sabukaru

Ghost in the Shell (Video Game 1997) - IMDb

Ranking the Only 4 'Ghost in the Shell' Video Games

The Vernet Shells are perfectly balanced, made of unbreakable plastic and the inner surface is curved to allow easier manipulation of the special pea.

Three Shell Game by Vernet - Trick

The Shell Game - Games online

Shell Game - Find the Pea

Ghost in the Shell: First Assault – Open Beta (Steam)

Moving Target Defense: A Digital Shell Game

Ghost in the Shell Online - Trailer debuts at G-Star for online shooter - MMO Culture