Jiggly Cash consists of six reels and five rows of symbols. Thunderkick has rated the game's volatility as extremely high, and the return to player is 96.19% by default and 96.46% when the feature is purchased for 110 times the bet. Base bets can be set as low as 0.10 per paid game round or as high as 100 if players desire to wager more. The max possible win is 10,000 times the stake.
At the heart of the action is the Avalanche feature, which eliminates winning symbols from the grid and replaces them with new or existing symbols. The Avalanche feature will repeat this procedure until there are no additional wins. At the conclusion of an Avalanche sequence, the complete prize is awarded. Regarding the symbols, Thunderkick has named each one. Low-paying symbols include the moon, flower, leaf, star, and heart, followed by the Blue Jiggly, Purple Jiggly, Green Jiggly, and Yellow Jiggly, with the Red Jiggly being the only high-paying symbol. Payout values range from 0.1 to 5 times the wager for a win with 8 scatter symbols to 0.5 to 30 times the wager for a win with 12 or more scatter symbols. Thunderkick chose not to include a wild symbol in Jiggly Cash.
If a horizontal or vertical gain occurs adjacent to a Multiplier symbol, the Multiplier feature is activated. The corresponding Multiplier symbol is withdrawn from the reels, and its value is added to the total multiplier. The possible values for the Multiplier symbol are x2, x3, x5, x10, x25, x50, x100, and x250. If Multipliers were activated during the Avalanche feature, the total gain at the conclusion of the sequence is multiplied by the total multiplier. Multipliers are maintained during the Avalanche feature, but reset after a win is paid.
If a horizontal or vertical victory occurs adjacent to a Mystery symbol, the Mystery feature is triggered. If a Mystery symbol is active during an Avalanche feature, before any scatter pay victories are evaluated, the Mystery feature converts all instances of a low-paying symbol into a mid- or high-paying symbol.
3 bonus symbols in the main game award 10 free spins, while 3 bonus symbols in the bonus round award +5 free spins. Active multipliers from the primary game are reset at the beginning of the bonus round. Throughout the duration of the bonus round, all multiplier values are accumulated and stored in the JIGGLYBANK. To apply the multiplier at the conclusion of an Avalanche sequence, the Multiplier feature must be activated at least during the sequence.