Several rule changes went into effect in April 1984. The couple in control was required to hit their plunger to determine the question value displayed on a "money machine", a random light which stopped at $50, $100, or $150. The amount could also be accompanied with "Prize," which awarded a bonus prize to the team that answered correctly, or "Turnover," which gave control of the question to the opposing team. In the second round, a "Number Off" space was added to the machine, which allowed the team who answered correctly to remove one extra number from the combination lock if they reached the bonus round. Also, if the winning team led by $500–$950 after two rounds, they originally received a prize, but this was later changed to a $500 bonus. Winning by $1,000 or more was worth a new car. Unlike the first format, there was no double option available in round two.