The free spins mode on a slot machine is totally different from the ones that are handed out by online casinos as incentives for new players or as loyalty rewards. Free spins mode on slots, sometimes incorrectly referred to as a bonus game, is something that is usually activated when you get three or more free spin, bonus or scatter symbols. This mode is a type of bonus game but there are many other types of bonus games. There are also hundreds of different variations of free spin rounds on slot machines and the highest wins are usually only possible to achieve when in free spin mode. Many slot machines feature special themed symbols and the theme is tied to the symbols, bonus features, and free spin rewards. A bonus game or free spin round is often triggered by a special symbol like a wild or scatter symbol. A wild is like a joker that substitutes other symbols and makes it easier to win. The scatter symbol is also found on most slot machines and if you get a certain number of them on the screen, you usually activate the bonus rounds. When playing in free spin mode, it is common to win more than the machines default mode. The more scatters that appear on the screen, the higher the amount you can win during the free spin mode.