The Ferelette is a high-tech version of the classical shell game, used by Ferrel Pus. Four hollow balls, one containing a prize, the rest containing a lethal spidrone, move around magnetically, and the player must guess which has the prize to stay alive.
On the Waystation, Tex Murphy was forced to find the ball with a ticket to the Moon Child four times in a row. The balls were: Up-right, center, down and down. Pus was very pissed when Murphy won the ticket.