Clearly a maze game, but unusual in that it doesn't involve tilting the case in order to move the ball around. Instead, you rotate the large dial in order to cause the maze to tip forwards, backwards, left and right. The spots marked with X are pits into which the ball can fall, ending the game. Delicate, tense and skilful, one of the more ingenious games in the series.
 

ORIGIN: UK

VARIANTS: Tremor