A wire mesh cage sits below a nozzle poking down from a machine on the ceiling. Inside the cage, the player is seated behind a podium with two domed buttons on the top numbered with the figures 1 and 2.

The player has to answer ten questions by hitting one of the buttons within a time limit, with each question worth ten points. A wrong press will cover them in gunge from the overhead machine. If they want to give the answer "one", they have to press button 2, and vice versa.