Jumbo Joker is a double 3-reeled slot with 5 paylines featuring traditional slot machine symbols. These include bright red berries, watermelons, lemons, grapes. A list of the latest no deposit bonus codes updated daily from the popular casinos with regular offers for new and existing casino members. No information is available for this page. Jumbo Joker is a double 3-reeled slot with 5 paylines featuring traditional slot machine symbols. No information is available for this page. These awards. For instance, the gambler that sees 3 Jokers on the field gets Mystery Prizes. Jumbo Joker slot has a variety of different bonuses and extra spins. Jumbo Joker slot has a variety of different bonuses and extra spins. . These include bright red berries, watermelons, lemons, grapes. These awards. For instance, the gambler that sees 3 Jokers on the field gets Mystery Prizes. Show me Bonuses.