One is the invisible man, the other is the policeman and if they meet, mayhem starts with the free spins round. There are two roaming wilds, one moving left to right and the other right to left which give you a free re-spin of the reels when they show up. The Invisible Man slot also has a huge array of bonus features that match the theme beautifully. We love this slot because of its theme. Set against a dark English country village where a scientist discovers the power of invisibility, he then becomes dangerously and murderously insane. NetEnt developed this exceptional slot which is based around the less well-known film from 1933. Instead, we’ve focused on the slot game bonus features, why they work well with the slot and the theme, and what makes them so much fun.īecause it’s better to play games that surprise you, rather than bore you or you’ve tried a hundred times before.

It doesn’t necessarily feature the games you might think – there’s no Starburst, Thunderstruck 2 or Book of Ra Deluxe here. We’ve put together a list of some games you may not know that have some of the most interesting features.

Free spins, sticky wilds, progressive features, there is a huge list of different slot bonuses that players enjoy. When playing online slots, bonus features are often one of the most sought out aspects of the game.

Free slot machine games with bonuses