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