Video Slot Machines in Illinois

[kurosh]

The buttons from left to right say "Double Up," "Take Score," then "Big" directly above "Small," to the right of that, "Start" and "Bet." You put in dollars and each 5 cents = 1 credit. You can bet up to 64 credits at a time and it plays slots. Has anyone ever played one of these? Know how bad the house edge is? I think the double up feature of it may be rigged. It does the high-low with a card. I had an ace up 4 times and each of the 4 times, another ace popped up.