If you win a payout at Video Poker, you can choose to gamble to increase your winnings by clicking on the Double button, which initiates a mini-game, giving you the chance to double your winnings.
The Player wins a round of the Double game: Jack vs 8.
You will be shown a different screen, with no Pay Table, but retaining the Cards and Button Bar sections of the normal Video Poker screen. The card on the left will be face-up, the remaining four cards will be face-down. To play the game, click on any one of the four face-down cards. All four hidden cards will then be revealed and the following situations are possible:
Note: If you are playing a game that includes 2-Wild cards, these always have a value of 2 during the Double game.
If you successfully double your winnings, you may then try to do so again, by clicking the Double button on the Button Bar and gambling again, or to bank your winnings by clicking the Collect button and returning to the Video Poker screen.
As long as you keep winning, you can keep clicking the Double button, up to the allowed limit for the game. Each time you try to double, the bet is for double or quits; i.e. if you lose, you forfeit everything you have just won, including your original payout from the main game.