Citation needed Psychologists Robert Breen and Marc Zimmerman 48 49 found that players of video slot machines reach a debilitating level of involvement with gambling three times as rapidly as those who play traditional casino games, even if they havegambled regularly on other forms. The prizes are usually small, but they are paid in addition to other winnings. Generally, class III is often referred to as casino -style gaming. In online slot games, they can also be used for winning a jackpot, multiplying the prize and/or triggering a certain feature. After the change is made, the machine must be locked to new players for four minutes and display an on-screen message informing potential players that a change is being made. A problem with three reel machines is that the number of combinations is only cubic the original slot machine with three physical reels and 10 symbols on each reel had only 103 1,000 possible combinations. 20 free spins for landing 3 scatter symbols anywhere on reels. However, no operator has ever enacted this strategy. "Woman sues Isle after she's denied 42 million from slot malfunction". There are also standard 3 to 5 reel electromechanical machines, of various types. "Fruit machine" redirects here. Only Hawaii and Utah continue to prohibit all types of gaming. In addition, slight variations of each machine (e.g., with double jackpots or five times play ) are always being developed. Typically, a drop bucket is used for low denomination slot machines and a drop box is used for high denomination slot machines. Large denomination slot machines are usually cordoned off from the rest of the casino into a "High Limit" area, often with a separate team of attendants to cater to the needs of those who play there. The regulatory scheme for class III gaming is more complex than a casual reading of the statute might suggest. Other jurisdictions, including Nevada, randomly audit slot machines to ensure that they contain only approved software. Canada edit The Government of Canada has minimal involvement in gambling beyond the Canadian Criminal Code. New slots are, by majority, playable on both mobile and desktop devices. A single free spin is sometimes called a respin.