Jumbo Joker slot has a variety of different bonuses and extra spins. 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. Show me Bonuses. For instance, the gambler that sees 3 Jokers on the field gets Mystery Prizes. No information is available for this page. These awards. These include bright red berries, watermelons, lemons, grapes. These awards. . Jumbo Joker is a double 3-reeled slot with 5 paylines featuring traditional slot machine symbols. 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.