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