Yes the odds of winning are quite small, but still there are ways to beat a slot machine for a small amount. When gambling was not yet banned in my country my friends and I used to go to the casino and play slot machines. Our strategy was that before we sit down for the slot machine we have several hours to monitor the activity of all slot machines. We were able to make good money sitting down only for those slot machine in which it has already been thrown a lot of money but they have not yet given the winnings.

Of course, this can not be attributed to breaking the code is just an increase in the probability of winning by counting.