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