When the game begins, all the contestants have to run out from behind a set of doors and over to a bath of powder. Buried in the powder are lots of disks. Written on each disk is either a number from 0 to 36, "Odd", "Even", "Black" or "Red". Once they have a disk, the contestants have to go and sit on the corresponding space on a giant roulette table.
When everyone is in place, Jo spins a roulette wheel. Whichever number is chosen, the contestants sitting on that number are scraped away and are out of the game. The contestants sitting on red or black and odd or even are also out, depending on what the number is. All the other contestants move onto the next round.