When the first slot machines appeared they were pretty dull to play, according to today's standards. The first classic slot machines would pay out a win once 3 symbols lined up on a winning pay line. No Wild symbols, no bonus features, nothing. But today the situation with slots is very much different. Pretty much every video slot today has one or more bonus features, a series of mini games and features in the bonus round itself. This makes the games interesting to play and gives them the potential for big payouts. So let’s take a look at the features which can be found on slots today and what they’re all about.