Jack Hammer introduces players to the gritty, crime-ridden underworld of a comic book universe, starring the hard-boiled private eye, Jack Hammer. Its distinctive 'Sticky Win' feature is a highlight, holding winning symbols in place for successive re-spins until no new winning combinations are formed, creating opportunities for larger payouts. During the Free Spins bonus, triggered by five or more bomb scatters, all wins are tripled, and additional free spins can be won.