Blueprint Gaming's video slot Fishin' Frenzy The Big Catch Jackpot King features a traditional configuration of five reels, three rows, and ten paylines.
Similar to the game without a jackpot, the symbols are identical and pay the same. For a winline of three, J, Q, K, and A pay 0.5X, and for a winline of five, 10X.
These are the lesser paying symbols: A lifebuoy, a fishing rod, a box of fishing equipment, and a white bird make up the higher-paying symbols. They pay between 2X and 5X for a winline of 3 and between 50X and 200X for a full winline of 5. Seven distinct sizes of blue fish are available, and they can be mixed in any way to produce consistent wins.
Three fish on a winline pays you at one times the stake, while five fish on a winline gets you twenty times the bet. Additionally, each fish has a cash value that ranges from 2X to 50X and is only relevant during the bonus spins.
The fisherman with a green vest and cap is the Wild Symbol. He becomes especially valued in the Big Catch Fish Upgrade during the free spins and can replace all other symbols. Three landings of the ship-shaped scatter symbol are required to start the bonus spins. Finally, but just as importantly, you can access the Jackpot King feature by landing five Jackpot King Deluxe Symbols.
There are seven sizes available for the Fish Symbol, with currency values of 2X, 5X, 10X, 15X, 20X, 25X, and 50X. It doesn't matter which fish you combine to make regular wins in the main game; their varying cash values are irrelevant. When a fish and a fisherman land on the same spin during the free spins, the cash value is applied.
On a board to the left, wild fisherman landings during the free spins are gathered. The first big fish upgrade occurs after four fishermen have been collected. For the remainder of the feature, all of the fish with the lowest value (2X) are being removed and replaced with fish with higher value.
Five Jackpot King Deluxe Symbols (one on each reel) must land on any spin in order to trigger the Jackpot King feature. A spin on a 5x3 grid, where you can land blanks or crowns, initiates the feature.