In the PlayStation version, the following sequence must be entered to play:
In subsequent versions, it can be accessed directly from the title screen once the game has been beaten.
The dealer deals out of two decks and stands on 17, and the game begins with a bankroll of 1,000. Once the match is over, the player will be taken back to the "The End" screen, and must execute the code again to play.
Launching the game and playing at least one hand of blackjack in the latest versions earns the achievement/trophy Taking the Black.