Jammin' Jars 2 at Flush | 100,000x Max Win, Bitcoin

Jammin’ Jars 2 Slot Review & Free Demo

Last Updated: May 2026 | Reviewed by Anastasia Nowak

Jammin’ Jars 2 is Push Gaming’s sequel to their flagship cluster pays slot, released in 2021 on an expanded 8x8 grid (64 positions, versus the original’s 7x7 grid with 49 positions). The RTP is 96.38%, below the original Jammin’ Jars at 96.83%. The max win is 20,000x, the same as the original’s ceiling but reached through a structurally different mechanic: Rainbow Wilds that grow in size with each cluster they contribute to, from 1x1 up to 5x5, with each size increase adding 1x to the wild’s multiplier. A 5x5 Rainbow Wild covers 25 of the 64 grid positions and carries a 5x multiplier. When two such wilds both contribute to the same cluster, their multipliers multiply together (5x times 5x = 25x on that cluster’s win). At Flush, you can play the Jammin’ Jars 2 free demo without creating an account. BTC, ETH, USDT, TRX, and SOL are all accepted with no identity verification required.

Quick Stats

Property	Detail
Provider	Push Gaming
RTP	96.38%
Max Win	20,000x
Volatility	Extremely High
Grid	8x8 (64 symbols)
Mechanic	Cluster Pays + Rainbow Wild Growth
Min Bet	0.10 USDT
Max Bet	100 USDT
Feature Buy	Yes: 100x stake
Free Spins	9 to 15 (3 scatter = 9, 5 scatter = 15)

How Jammin’ Jars 2 Works

The game plays on an 8x8 grid with no paylines. Clusters of 5 or more matching fruit symbols pay. When a cluster pays, those symbols are removed and the grid refills from above. Cascades continue until no new clusters form. The 8x8 grid creates 64 symbol positions per spin, 15 more than the original Jammin’ Jars, which increases the frequency of cluster formations across the wider surface area.

Rainbow Wild symbols are present in both the base game and free spins. In the base game, a Rainbow Wild acts as a wild for any adjacent non-Wild symbol and carries a multiplier that applies to any cluster win it contributes to. The multiplier values in the base game range from 2x to 8x.

The Rainbow Wild growth mechanic operates during free spins. When a Rainbow Wild contributes to a winning cluster during free spins, it does not jump to a new position (as the original Jammin’ Jars Wild Jar does). Instead, it grows: a 1x1 wild that contributes to a cluster becomes a 2x2 wild on the next spin. A 2x2 becomes a 3x3. This continues: 3x3 becomes 4x4, and 4x4 becomes 5x5. Each size increase also adds 1x to the wild’s multiplier.

A 5x5 Rainbow Wild covers 25 of the 64 grid positions, which is 39% of the entire 8x8 board. On a 64-symbol grid, a single 5x5 wild guarantees wild contribution to virtually every cluster that forms anywhere on the board.

The Rainbow Wild Multiplier System

The multiplier on a Rainbow Wild scales with its size. A 1x1 wild carries 1x. A 2x2 carries 2x. A 5x5 carries 5x. When a cluster forms that includes positions from one Rainbow Wild, that wild’s multiplier applies to the cluster win. When a cluster spans positions from two Rainbow Wilds simultaneously, their multipliers multiply (not add): two 5x Rainbow Wilds contributing to the same cluster produce 25x (5 x 5) on that cluster’s total payout.

During free spins, multiple Rainbow Wilds can be active on the 8x8 grid simultaneously, each growing independently at their own pace. A free spins round where two separate Rainbow Wilds both reach 5x5 size and both contribute to the same large cluster is the highest-value configuration in Jammin’ Jars 2. Two 5x wilds on a large cluster = 25x on that cluster’s win. Three active wilds at different sizes, say 3x, 4x, and 5x, contributing to a shared cluster = 3 x 4 x 5 = 60x.

Jammin’ Jars 2 vs the Original: Core Differences

Grid size: the original uses a 7x7 grid (49 symbols). Jammin’ Jars 2 uses an 8x8 grid (64 symbols), 31% more grid positions.

Wild mechanic: the original’s Wild Jar jumps to a new position after each contributing cluster win and gains +1x multiplier per jump. Jammin’ Jars 2’s Rainbow Wild grows in place, expanding its coverage area rather than moving.

Wild persistence: in free spins, the original’s Wild Jar moves but resets some multiplier mechanics. In Jammin’ Jars 2, multiple Rainbow Wilds persist between free spins and each grows independently. Retriggers in Jammin’ Jars 2 (2+ scatters during free spins) add 3 more spins without resetting Rainbow Wild sizes.

Max win: identical at 20,000x despite the higher volatility and expanded grid of the sequel. The base RTP drops from 96.83% to 96.38%.

Free Spins

Three or more jar scatter symbols trigger free spins. Each scatter awards 3 spins: 3 scatters = 9 spins, 5 scatters = 15 spins. During free spins, Rainbow Wilds persist between spins. Multiple wilds can be active on the grid simultaneously, each growing independently with each cluster contribution. A retrigger (2+ scatters landing during free spins) adds 3 more spins without resetting the Rainbow Wild sizes or multiplier values already accumulated.

The Feature Buy at 100x stake purchases direct free spins entry. At 0.10 USDT minimum bet, this costs 10 USDT. The expected value of buying the feature is calibrated to be comparable to natural base game play: it is a session timing tool rather than a value advantage.

Jammin’ Jars 2 RTP: The Original vs Sequel Trade-Off

The RTP difference between Jammin’ Jars 2 (96.38%) and the original Jammin’ Jars (96.83%) is 0.45%. Over 1,000 spins at 1 USDT, the expected loss on Jammin’ Jars 2 is approximately 6.20 USDT versus approximately 3.17 USDT on the original: nearly double the expected loss per session at the same stake and spin count. The sequel returns the larger 8x8 grid and the Rainbow Wild growth mechanic in exchange for this increased house edge. The max win ceiling remains the same at 20,000x.

For expected-value-focused Flush players, the original Jammin’ Jars at 96.83% RTP is the better long-run choice. For players who prefer the Rainbow Wild growth mechanic over the position-jumping Wild Jar of the original, Jammin’ Jars 2 delivers that experience at 0.45% additional per-spin cost. Use the Jammin’ Jars 2 free demo on Flush to compare the Rainbow Wild growth behavior against the original’s Wild Jar jump system before committing BTC, ETH, USDT, TRX, or SOL.

How to Play Jammin’ Jars 2 on Flush

The Jammin’ Jars 2 free demo is accessible at Flush without account creation. Open the game page on Flush and select demo mode to play with play credits at full speed. The demo includes the Rainbow Wild growth mechanic, Feature Buy, and the full free spins system with multi-wild persistence.

To play with real cryptocurrency at Flush, deposit using BTC, ETH, USDT, TRX, or SOL. TRX and SOL settle within 1 to 3 minutes. BTC and ETH confirm in 10 to 20 minutes. Flush charges no deposit fees. Once funded, open Jammin’ Jars 2, set your stake, and begin. Withdrawals in all five currencies process without Flush-side fees.

Strategy Tips

Extremely High volatility in Jammin’ Jars 2 requires more session bankroll relative to stake than any other cluster pays slot at Flush. A reasonable minimum: session bankroll covering at least 100 spins at your chosen stake. This accounts for cold base game runs while waiting for a free spins trigger and allows multiple free spins rounds to observe the Rainbow Wild growth mechanic in action.

The retrigger mechanic in Jammin’ Jars 2 is particularly valuable because it does not reset Rainbow Wild sizes. If two Rainbow Wilds have grown to 3x3 and 4x4 during the first 9 spins of a free round, a retrigger adds 3 more spins while those wilds maintain their size and continue growing. A retrigger at that state positions the bonus round for its highest-value potential in the extended spins.

Flush VIP cashback on net losses applies to all slot play including Jammin’ Jars 2. At 96.38% RTP, long sessions produce more expected loss per spin than higher-RTP slots, making VIP cashback proportionally more valuable for regular Jammin’ Jars 2 players. Check your VIP tier in the Flush account dashboard.

Similar Games to Jammin’ Jars 2

Jammin’ Jars (Push Gaming, 96.83% RTP) is the original. Wild Jar position-jump multiplier system, 20,000x max win, same ceiling but better RTP and lower volatility. The right choice if expected value per spin matters more than the 8x8 grid or Rainbow Wild growth mechanic.

Sweet Bonanza (Pragmatic Play, 96.48% RTP) uses per-spin multiplier bombs on a 6x5 candy-themed grid. 21,175x max win. Higher RTP than Jammin’ Jars 2.

Reactoonz 2 (Play’n GO, 96.20% RTP) is a 7x7 alien cluster slot with Energoon attachment and three-phase Gargantoon mechanics. Lower RTP than Jammin’ Jars 2, lower ceiling.

Chaos Crew (Hacksaw Gaming, 96.30% RTP) is a 5x3 payline slot with six distinct chaos character modifiers and a 10,000x max win. Lower ceiling and different format from Jammin’ Jars 2.

Fruit Party (Pragmatic Play, 96.5% RTP) is a 7x7 cluster slot with multiplicative global multipliers during free spins. Higher RTP than Jammin’ Jars 2, lower ceiling.

Jammin’ Jars 2 vs Jammin’ Jars 1: Side-by-Side Comparison

Push Gaming released Jammin’ Jars 2 in 2021 as a sequel to their most successful cluster pays title. The two games share the same grid dimensions, cluster threshold, and maximum win ceiling, but differ substantially in their wild mechanic, volatility classification, and RTP.

Feature	Jammin’ Jars	Jammin’ Jars 2
Grid size	8x8	8x8
RTP	96.83%	96.38%
Max win	20,000x	20,000x
Volatility	High	Very High
Cluster threshold	5+ symbols	5+ symbols
Wild mechanic	Rainbow Wild Jar: moves one position after each cascade contribution	Rainbow Wild: stationary, grows in size with each cascade contribution
Multiplier mechanic	Jar accumulates plus-1x per cascade step, no cap	Wild grows from 1x1 to 5x5, multiplier scales with size from 1x to 5x
Free spins trigger	6+ scatter jars	3+ scatter jars
Free spins base award	12 to 16 spins	9 to 15 spins
Free spins starting wild multiplier	3x per jar	Higher starting values in free spins
Super Free Spins	Yes (wild multipliers start at 5x)	Yes (enhanced wild multiplier starting values)
Retrigger mechanic	3+ scatters add spins	2+ scatters add 3 spins; wild sizes preserved

The key mechanical difference between the two games is how Rainbow Wild symbols behave after contributing to a winning cluster. In Jammin’ Jars 1, each Rainbow Wild Jar moves one position in a random direction after every cascade it participates in, accumulating multiplier value through movement. The jar can wander across the 8x8 grid over many cascades, reaching high multiplier values without any cap. A jar that contributes to 15 cascades carries a 16x multiplier regardless of where on the grid it has moved.

In Jammin’ Jars 2, the Rainbow Wild does not move. Instead, it grows in place. A 1x1 wild that contributes to a cluster expands to 2x2. A 2x2 expands to 3x3. The growth continues up to 5x5, which covers 25 of the 64 grid positions. The multiplier scales with the size: 1x at 1x1, 2x at 2x2, 3x at 3x3, 4x at 4x4, and 5x at 5x5. The multiplier ceiling in Jammin’ Jars 2 is therefore capped at 5x per wild. In Jammin’ Jars 1, there is no multiplier ceiling per jar.

The Very High volatility classification of Jammin’ Jars 2 compared to High for the original reflects this difference in wild behaviour. The growth-in-place mechanic delivers faster area coverage of the grid (a 5x5 wild covers 39% of the board) but caps the multiplier contribution per wild at 5x. When two fully grown 5x5 wilds both participate in the same cluster, they combine at 5 times 5 = 25x, which is the maximum per-spin multiplier from two wilds in Jammin’ Jars 2. In Jammin’ Jars 1, two jars at 10x and 12x on the same cluster produce 120x with no similar cap.

The 0.45% RTP difference between the two games (96.83% vs 96.38%) is meaningful for any player making a sustained number of spins. Over 10,000 spins at 0.001 BTC per spin, Jammin’ Jars 2 produces approximately 45 units more in expected losses than Jammin’ Jars 1 at the same stake and spin count. Players who prefer the growth-in-place mechanic of the sequel and accept the lower RTP as the cost of that preference are making a clear trade-off. Players who prioritise expected return per unit staked should choose Jammin’ Jars 1.

The lower scatter threshold for free spins in Jammin’ Jars 2 (3+ scatters vs 6+ scatters in the original) means free spins trigger more frequently in the sequel. This contributes to the Very High volatility profile because more frequent bonus rounds with a capped 5x wild multiplier can still produce a wide range of outcomes depending on how many wilds grow simultaneously and whether multiple wilds converge on the same cluster.

The Jammin’ Jars 2 free demo at Flush is available without account creation and demonstrates the growth-in-place wild mechanic directly. Comparing the two demos side by side is the clearest way to evaluate which session structure suits a given play preference.

Jammin’ Jars 2 Bomb Jar Explosion Mechanics and Free Spins Reference

The Rainbow Wild growth mechanic in Jammin’ Jars 2 operates differently from any standard wild mechanic found in most cluster pays titles. Understanding how size growth interacts with cluster formation probability and multiplier combination is essential for realistic session expectations.

When a Rainbow Wild first lands on the 8x8 grid, it occupies a single position (1x1) and carries a 1x multiplier in the base game, or a higher starting multiplier during free spins. The wild substitutes for all regular symbols in its single occupied position. The first time a winning cluster forms that includes the wild’s position, the wild expands: it now covers a 2x2 area (4 positions) and its multiplier increases to 2x. The expansion is centred on the wild’s original position where grid boundaries allow.

The second cluster contribution from the same wild expands it again to 3x3 (9 positions, multiplier 3x). Third contribution: 4x4 (16 positions, multiplier 4x). Fourth contribution: 5x5 (25 positions, multiplier 5x). At full size, the wild covers 25 of 64 grid positions. Any cluster that forms anywhere in or adjacent to those 25 positions includes the wild’s substitution. Cluster formation probability across the grid increases substantially as the wild grows, because a wider portion of the grid now has wild coverage, and any symbol cluster touching the wild’s expanded area benefits from the substitution.

Multiple Rainbow Wilds can be active simultaneously during free spins, each growing independently at their own pace. If two wilds both reach 5x5 size and both contribute to the same cluster in the same cascade, their multipliers combine: 5 times 5 = 25x applied to that cluster’s base pay. If three wilds are active at sizes 3x, 4x, and 5x and all contribute to the same cluster, the combined multiplier is 3 times 4 times 5 = 60x. The highest possible per-cluster multiplier from two fully-grown wilds is 25x. From three fully-grown wilds, it is 125x. These values applied to a large high-value cluster win drive the largest outcomes in Jammin’ Jars 2.

Free spins trigger at 3 or more scatter jars. Three scatters award 9 free spins, and each additional scatter adds proportional spins up to 15 for 5 scatters. During free spins, Rainbow Wilds start with higher base multiplier values than in the base game, and their size-growth mechanic remains the same. Retriggers during free spins, triggered by 2 or more scatter jars landing, add 3 more spins to the remaining count without resetting any wild sizes. A wild that has grown to 4x4 during the first 6 free spins continues at 4x4 into any retrigger spins, with its next cluster contribution expanding it to the full 5x5.

Session bankroll for Jammin’ Jars 2: Very High volatility with more frequent free spins triggers than the original requires a minimum of 400 units per session. Individual bonus round outcomes are highly variable because wild growth depends on cascade frequency during the free spins round. Rounds where few cascades occur produce wilds that remain small with low multipliers. Rounds with sustained cascade chains allow multiple wilds to reach full 5x5 size with 5x multipliers, creating the conditions for high-multiplier cluster wins. The Jammin’ Jars 2 free demo at Flush is available for testing the wild growth progression and observing the range of free spins outcomes before committing BTC, ETH, USDT, TRX, or SOL.

FAQ

What is the RTP of Jammin’ Jars 2?

Jammin’ Jars 2 by Push Gaming has an RTP of 96.38% and a house edge of 3.62%. This is 0.45% below the original Jammin’ Jars at 96.83%. The lower RTP funds the expanded 8x8 grid and the Rainbow Wild growth mechanic. For players focused on expected return per spin, the original Jammin’ Jars at Flush is the better value choice at 96.83%.

What is the Rainbow Wild in Jammin’ Jars 2?

The Rainbow Wild starts as a 1x1 wild symbol. Each time it contributes to a winning cluster during free spins, it grows by one size: 1x1 to 2x2 to 3x3 to 4x4 to 5x5. Each size increase adds 1x to its multiplier. A 5x5 wild covers 25 of the 64 grid positions and carries a 5x multiplier. When two Rainbow Wilds both contribute to the same cluster, their multipliers multiply: two 5x wilds = 25x on that cluster’s win.

Can I play Jammin’ Jars 2 for free at Flush?

Yes. The Jammin’ Jars 2 free demo is available at Flush without creating an account. Select demo mode to play with play credits at full speed. The demo includes the Rainbow Wild growth mechanics, Feature Buy, and full free spins system with multi-wild persistence across spins. Use it to observe the Rainbow Wild growth sequence before depositing BTC, ETH, USDT, TRX, or SOL.

How does Jammin’ Jars 2 compare to the original?

The original Jammin’ Jars uses a 7x7 grid (49 symbols) with Wild Jars that jump positions and gain multiplier through movement. Jammin’ Jars 2 uses an 8x8 grid (64 symbols) with Rainbow Wilds that grow in place during free spins. RTP: original 96.83%, sequel 96.38%. Max win: both cap at 20,000x. Volatility: original is High, sequel is Extremely High. The sequel adds grid size, a distinct wild growth mechanic, and much higher volatility in exchange for lower RTP.

What cryptocurrency can I use for Jammin’ Jars 2 at Flush?

Flush accepts BTC, ETH, USDT, TRX, and SOL for all slot games including Jammin’ Jars 2. TRX and SOL deposits settle in 1 to 3 minutes. BTC and ETH deposits confirm in 10 to 20 minutes. No deposit fees apply. Withdrawals in all five currencies process without Flush-side fees.

Mechanic Deep Dive

Jammin’ Jars 2 operates on an 8x8 grid of 64 symbol positions, 15 more than the original’s 7x7 grid of 49. Cluster pays require 5 or more adjacent matching symbols connected horizontally or vertically. The larger grid creates more surface area for cluster formation and makes multi-cluster spins more common than on the original’s smaller grid.

The Rainbow Wild mechanic in Jammin’ Jars 2 differs fundamentally from the Wild Jar jump mechanic in the original. In the original, Wild Jars jump to a new random position after each cluster contribution and gain +1 to their multiplier. In Jammin’ Jars 2, Rainbow Wilds grow in place: each time a Rainbow Wild contributes to a cluster during free spins, it expands by one size category. A 1x1 wild grows to 2x2. A 2x2 grows to 3x3. The maximum size is 5x5, covering 25 of the 64 grid positions.

At 5x5 size, a single Rainbow Wild occupies 39% of the 8x8 board. Any cluster of 5 or more symbols that includes any of those 25 positions benefits from the Rainbow Wild substitution. With multiple Rainbow Wilds growing simultaneously on the 8x8 grid, the compounding cluster formation probability increases with each growth event.

The multiplier scales with wild size: 1x wild at 1x1, 2x at 2x2, 3x at 3x3, 4x at 4x4, 5x at 5x5. When two Rainbow Wilds both contribute to the same cluster, their multipliers multiply together (not add): two 5x wilds produce 25x on that cluster. Three wilds at 3x, 4x, and 5x contributing to the same cluster produce 60x.

Series Comparison

Jammin’ Jars vs Jammin’ Jars 2:

Feature	Jammin’ Jars	Jammin’ Jars 2
RTP	96.83%	96.56%
Max Win	20,000x	30,000x
Grid	7x7 (49 positions)	8x8 (64 positions)
Rainbow Wild behavior	Jumps to new position after each cluster win	Grows in place by one size
Wild multiplier cap	None (uncapped)	5x at full 5x5 size
Multi-wild interaction	Multipliers multiply together	Multipliers multiply together
New Modifiers	None	Sticky Wilds, Golden Jar
Volatility	High	High
Cluster Minimum	5 connected	5 connected
Scatter Threshold	6+ scatters, 5 base spins	3+ scatters, 9 base spins
Feature Buy	100x stake	100x stake

The original’s uncapped Wild Jar multiplier is a key differentiator: in theory, a Wild Jar that contributes to a cluster on every spin of a long session could accumulate past 15x or 20x with no ceiling. Jammin’ Jars 2’s Rainbow Wild caps at 5x but can reach that cap much faster through the growth-in-place mechanic, particularly with multiple wilds growing simultaneously.

Paytable Reference

Jammin’ Jars 2 uses a cluster pays structure on an 8x8 grid. Payouts scale with cluster size and apply to the full cluster, not per symbol.

Symbol	5-cluster	8-cluster	12-cluster	20+ cluster
Strawberry (top)	0.6x	1.2x	2.5x	6x
Watermelon	0.5x	1x	2x	5x
Plum	0.3x	0.7x	1.2x	3.5x
Grapes	0.25x	0.5x	1x	2.5x
Orange	0.2x	0.4x	0.8x	2x
Lemon	0.15x	0.3x	0.6x	1.5x
Kiwi	0.15x	0.3x	0.6x	1.5x
Lime (low)	0.1x	0.2x	0.4x	1x

Rainbow Wild multipliers apply on top of cluster payouts. A 20+ cluster of Strawberry symbols paying 6x with a 4x and 5x Rainbow Wild contributing produces 6 x 4 x 5 = 120x on that cluster win.

Bankroll Requirements

Jammin’ Jars 2 is High volatility with a lower scatter threshold than the original, making free spins triggers more frequent but individual bonus outcomes more variable.

Session Type	Minimum Units	Recommended Units	Notes
Standard organic session	200	400	High vol, more frequent triggers than JJ1
Feature Buy session	100 per buy	300 (3 buys)	Rainbow Wilds start at 1x1, no carry-in
Extended value session	300	500	Allows multiple trigger observations
Conservative	400	600	Wide variance buffer

BTC and USDT deposits on Flush allow micro-stakes. USDT provides cleaner session accounting without crypto price movement affecting results analysis.

Related Pages at Flush

• Push Gaming Casino Games at Flush
• Cluster Pays Slots
• Best Bonus Buy Slots
• Jammin’ Jars – Slot Review
• Reactoonz 2 – Slot Review
• Sweet Bonanza 1000 – Slot Review

About the Author

Anastasia Nowak has reviewed online slots and casino games for eight years, with a focus on high-volatility mechanics and provably fair (learn more) crypto casino platforms. She has played over 400 distinct slot titles across 30+ online casinos and tracks RTP variance, bonus trigger frequency, and maximum win achievability as measurable metrics rather than subjective impressions. Anastasia’s reviews at Flush prioritise mechanical transparency: how each feature works, what conditions produce large wins, and what bankroll is realistically required to experience a game’s full range. She holds a certification in responsible gambling education and includes practical budget framing in every review.