Caesars Palace is a licensed tie-in to the Caesars Palace brand of casinos for the NES. In the game, you get to play a number of gambling games in the titular Caesars Palace: Roulette, Video Poker, Slots, Blackjack, and the Big Wheel. Leave the casino with enough money gained from your playthroughs and you get a car based on what you have.
TaoTao saves 3.8 seconds over the previous run by using the Slots instead of the Big Wheel to get $140,000 more quickly. Time was spent playing Video Poker in order to set up the RNG for Slots. For more details, you can read the author's notes.
Watch this run being played back on a real console.