Slots with "Gamble" option

[deucebag]

I've been playing slots on The Gaming Club (Microgaming software) lately, and some of them have a "gamble" option where you can double or quadruple your win by betting on the color or suit of a card. Are there any other softwares out there with this feature for slots?

 

[Simmo!]

You can't on Crypto, Wagerworks and Playtech. Not sure about RTG though...I'm guessing not.

 

[fixit4utoo]

You can gamble on black or red on some of the slots at Lasseters.
Phil

 

[liquidsoap]

RTG doesnt have a double on its real series slots....
Thats the only slots I play there, not so sure about the 3 reel slots.