The bad news is there is no "secret system" that exists where you can beat the casinos playing slot machines. The good news is there is a system (for some reason people love the word "system" when it comes to gambling methods, so I'll stick with it), where you can leave the casino with money in your pocket, and not have that empty hollow feeling inside because you just lost more money than you can afford to lose.
This is where I come in. With the system I've developed, you can still play slot machines and have a good time, but using these methods, you're more than likely going to come home with some money.