Batman and the Joker Jewels Gratis is an exciting online slot game that features the iconic characters from the Batman series. With thrilling gameplay and stunning graphics, players are immersed in the world of Gotham City. The game offers various bonus features, including free spins and multipliers, to enhance the gaming experience. Players have the chance to win big jackpots while enjoying the dynamic interactions between Batman and the Joker. Overall, Batman and the Joker Jewels Gratis is a must-play for fans of the Dark Knight and those looking for an entertaining slot game.