4 Hour Rental. Rent the JacobâÂÂs Ladder Inflatable carnival game for your next church function, birthday party, corporate event or special event. The JacobâÂÂs Ladder is similar to the ones you have seen at fairs and carnivals. Test your balance and see if you can reach the top without falling. An extreme challenge suitable for children as well as adults. ADULT SUPERVISION IS REQUIRED AT ALL TIMES!