Payoffs on the machines vary from machine to machine, but start at 1 to 1, and go up to 1 to 25,000 for really big wins. You can change the machine style include manual pull arm and electronic spin button. You can also change the way the wheels stop: automatic stopping after a few seconds, a button to stop the wheels under your control, and a button to stop each wheel independently. Upgrades include unlimited coins and more types of slot machines with mini-games.