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