Big Money Round
During the commercial break following the completion of the first round, the contestants used the money they had earned to build houses and hotels on their properties. These cost $50 and $250 respectively, regardless of the properties' position on the board, and contestants had to build evenly within a color group. The number of houses/hotels on a property determined the amount of its rent, which was used as the value of its clues.
Once the contestants' construction purchases had been revealed and the corresponding cost deducted from their scores, the Big Money Round began. An indicator light started at "GO" and moved clockwise around the board, according to the total of two oversized dice rolled by the show's hostess. Every contestant received a $200 bonus whenever the indicator light passed or landed on "GO."
If a property was landed on, O'Donnell called out its rent value and Reilly read a clue to the contestant who owned it. A correct response added the rent value to his/her score. A miss incurred no penalty but allowed either of the opponents to buzz in under the same rules as the first round, with an incorrect answer deducting from that contestant's score.
Squares other than properties affected the gameplay as follows:
Utilities (Electric Company and Water Works): a tossup clue was asked, worth $100 times the total on the dice.
Railroads: if the indicator light landed on one of the four railroads, contestants got the chance to "ride" the particular railroad to a monopoly and initiate a "hostile takeover". A tossup was asked, and the first contestant to answer the clue correctly chose one of his/her opponents' monopolies to take over. The indicator light then moved to the first property in the chosen monopoly, and the contestant trying to take it over had to answer a series of clues unopposed, one for each property. Every correct answer advanced the indicator light to the next property in line. If the contestant answered all the clues correctly, he/she won control of the monopoly; its combined value was added to his/her score, and any houses or hotels built on it became his/her property. A wrong answer ended the takeover attempt and the contestant had to pay the corresponding rent to the owner of the monopoly, based on where the indicator was when the wrong answer was given.
Chance and Community Chest: a card was drawn from the appropriate deck and its instructions (bonuses, fines, movement) were followed.
Tax Spaces: landing on Income Tax deducted 10% from every contestant's score, while Luxury Tax deducted $75.
Free Parking: a tossup was asked and the first contestant to answer correctly won $500, plus all money collected in taxes/fines since the last correct Free Parking response.
Go To Jail: if the indicator landed on this space, it moved to the "In Jail" space and each contestant lost $250.
The second round was played until time was called. At this point, all houses and hotels were sold back to the bank at their original purchase price and the money was credited to the contestants who owned the properties, regardless of who had originally built them. The contestant with the highest total won the game, kept his/her money, and advanced to the bonus round.