Reactoonz 2 at Flush | Bitcoin, Gargantoon, Play'n GO Sequel

Reactoonz 2 Slot Review & Free Demo

Last Updated: May 2026 | Reviewed by Anastasia Nowak

Reactoonz 2 is Play’n GO’s sequel to their alien cluster pays slot, released in 2021 on a 7x7 grid with a 4,570x max win and 96.20% RTP. The original Reactoonz runs at 96.51% RTP, making the sequel’s 0.31% lower RTP the most notable trade-off for its expanded mechanics. The key mechanical addition in Reactoonz 2 is the Energoon: small charged creatures that attach to high-value symbols and boost their individual pay values by 1x to 5x before cluster wins are calculated. This Energoon attachment system is absent from the original, where creature symbols pay flat values. Combined with the Gargantoon 3x3 Wild that splits into two 2x2 Wilds and then into four 1x1 Wilds across three separate cascade pay events, Reactoonz 2 introduces two compounding mechanics not present in the original. At Flush, you can play the Reactoonz 2 free demo without creating an account. BTC, ETH, USDT, TRX, and SOL are accepted with no identity verification.

Quick Stats

Property	Detail
Provider	Play’n GO
RTP	96.20%
Max Win	4,570x
Volatility	High
Grid	7x7
Mechanic	Cluster Pays + Energoon + Gargantoon + Fluctometer
Min Bet	0.20 USDT
Max Bet	100 USDT
Free Spins	No fixed count, Quantum features
Feature Buy	No

How Reactoonz 2 Works

The game plays on a 7x7 grid with no paylines. Clusters of 5 or more matching alien symbols pay. When a cluster pays, those symbols are removed and the grid refills from above. Cascades continue until no new clusters form. The symbols are cartoon aliens in different sizes, with larger aliens paying more per cluster than smaller ones.

The Fluctometer on the left side of the screen fills with each tumble. When the Fluctometer reaches its threshold, it places a wild on the grid. When it fills completely, the Wildstorm mechanic activates, placing multiple wilds across the grid in a single event.

The Quantum meter fills as clusters pay. When it reaches each threshold, a Quantum feature fires: Implosion (removes symbols and transforms surrounding symbols into wilds), Demolition (destroys all lowest-paying symbol types on the grid), Alteration (transforms one symbol type into another), or Incision (places two 2x1 wild symbols along a random axis).

The Energoon System: Reactoonz 2’s Key Addition

Energoons are small charged creatures exclusive to Reactoonz 2. They attach to high-value symbols on the grid when they appear and apply a value boost of 1x to 5x to that symbol before its cluster win is calculated. A high-value alien symbol carrying a 5x Energoon attachment pays 5x more per cluster position than the same symbol without an Energoon.

The Energoon mechanic is absent from Reactoonz 1, where all creature symbols pay flat values regardless of position or attached modifiers. In Reactoonz 2, a 5-cluster of high-value symbols with two Energoon-boosted positions pays more than a 5-cluster of the same symbols without Energoon attachments, even at identical cluster sizes. This is the primary reason Reactoonz 2 can reach 4,570x despite having a lower base RTP than the original: when Energoon boosts align with large clusters during Quantum feature activations, the combined value multiplies significantly.

The Gargantoon System

When the Gargantoon activates via the Quantum meter, a 3x3 Wild alien appears on the grid, covering 9 positions simultaneously and acting as a wild for any adjacent cluster. After the 3x3 Gargantoon contributes to a cluster (or the grid resolves around it), it splits into two 2x2 Gargantoon Wilds. Each 2x2 unit covers 4 positions. After the 2x2 units contribute to their respective clusters, each splits into two 1x1 Wilds, producing four 1x1 wild symbols total.

A single Gargantoon activation therefore generates 3 separate cascade pay events: the 3x3 paying, the two 2x2 units paying, and the four 1x1 units paying. Total wild positions across the sequence: 9 (3x3) + 8 (two 2x2s) + 4 (four 1x1s) = 21 wild-position interactions from one Gargantoon entry. A centrally placed Gargantoon has the highest interaction probability with surrounding clusters across all three split phases.

Reactoonz 2 vs Original Reactoonz

RTP: the original runs at 96.51%, Reactoonz 2 at 96.20%. This 0.31% RTP gap is the largest trade-off for choosing the sequel. Over 1,000 spins at 1 USDT, the expected additional loss on Reactoonz 2 versus the original is approximately 3.10 USDT.

Max win: the original Reactoonz reaches approximately 4,570x. Reactoonz 2 also caps at 4,570x. The max win ceiling is essentially the same despite the additional mechanics.

Unique to Reactoonz 2: the Energoon attachment system (1x to 5x individual symbol boosts) and the three-phase Gargantoon split (3x3 to 2x2 to 1x1). The original Reactoonz uses a simpler Gargantoon-only Quantum system without Energoon attachment.

The practical choice for Flush players: if expected value per spin matters more, the original Reactoonz at 96.51% is the better pick. If the Energoon and three-phase Gargantoon mechanics are the preference, Reactoonz 2 offers them at 0.31% additional house edge per spin. Neither version includes a Feature Buy at Flush.

How to Play Reactoonz 2 on Flush

The Reactoonz 2 free demo is available at Flush without creating an account. Open the game page and select demo mode to play with play credits at full speed. The demo includes the full Energoon attachment system, Gargantoon transformation sequence, Fluctometer, and all four Quantum features. Use the Reactoonz 2 free demo on Flush to observe how the Quantum meter fills and how Energoon boosts interact with cluster formation before committing BTC, ETH, USDT, TRX, or SOL.

To play with real cryptocurrency at Flush, create an account and deposit using BTC, ETH, USDT, TRX, or SOL. TRX and SOL deposits settle in 1 to 3 minutes. BTC and ETH deposits confirm in 10 to 20 minutes. Flush charges no deposit fees on any supported currency. Once funded, open Reactoonz 2, set your stake, and begin. Withdrawals in BTC, ETH, USDT, TRX, and SOL process without Flush-side fees. No identity verification is required for cryptocurrency deposits at Flush.

Strategy Tips

Reactoonz 2 has no Feature Buy, which means all Quantum features are accessible only through natural play. The Energoon mechanic makes cluster composition more important than in most cluster slots at Flush: a cluster of high-value symbols carrying Energoon boosts pays substantially more than the same cluster size without Energoon attachment. Spins that produce large high-value clusters while Energoon-boosted symbols are present on the grid are the primary value events in Reactoonz 2.

The Demolition and Alteration features at lower Quantum meter thresholds clear low-value symbol types and transform grid composition. Spins immediately following Demolition often produce larger cascading sequences because the grid density of higher-paying symbols increases. Planning session bankroll around these mid-tier activations improving subsequent spins is a key dynamic of Reactoonz 2’s session structure.

At High volatility, Reactoonz 2 requires session bankroll sufficient to sustain runs between significant Quantum activations. Plan for at least 75 to 100 spins at your chosen stake without a major Gargantoon activation. Use the free demo on Flush to observe Quantum meter fill rates and calibrate realistic activation frequency before depositing BTC, ETH, USDT, TRX, or SOL. Flush VIP cashback on net losses applies to all slot play.

Similar Games to Reactoonz 2

Reactoonz (Play’n GO, 96.51% RTP) is the original. Same max win ceiling (4,570x), higher RTP by 0.31%, simpler Gargantoon-only system without Energoon attachment. The right choice if expected value per spin matters more than the expanded mechanics.

Jammin’ Jars (Push Gaming, 96.83% RTP) is the highest-RTP major cluster slot at Flush. Wild Jar position-jump multiplier system on a 7x7 grid. Better expected value than Reactoonz 2 per spin.

Jammin’ Jars 2 (Push Gaming, 96.38% RTP) uses the Rainbow Wild expansion mechanic with a 20,000x max win ceiling. Lower RTP than Reactoonz 2 but significantly higher ceiling.

Sweet Bonanza 1000 (Pragmatic Play, 96.48% RTP) uses stacking bomb multipliers on a 6x5 candy-themed grid. Higher RTP than Reactoonz 2, lower ceiling.

Chaos Crew (Hacksaw Gaming, 96.30% RTP) is a 5x3 payline slot with 6 distinct chaos characters. Lower RTP than Reactoonz 2.

Reactoonz 2 Gargantoon and Quantum Leap Mechanic Reference

Reactoonz 2 runs on a 7x7 grid with cluster pays that require 5 or more adjacent matching symbols to trigger a win. The 7x7 grid provides 49 symbol positions, which is substantially more surface area than the 5x5 grid used in games like Mental (Hacksaw Gaming) or the 5x3 grid used in standard payline slots. The larger grid increases the probability of large cluster formation by giving matching symbols more positions to connect across, which directly supports the Energoon and Gargantoon mechanics that are Reactoonz 2’s defining features.

The Quantum Leap Charge Meter is the central feature delivery system. The meter charges on every cascading win within a spin’s cascade sequence. When the meter reaches 4 charges, one of 5 Quantum Leaps activates at random. The 5 Quantum Leap types are:

Destabilizer removes the least abundant symbol type from the grid entirely and replaces those positions with other symbol types. By eliminating the symbol that appears least often, Destabilizer reduces grid fragmentation and increases the density of the remaining symbol types. This improved density raises the probability of cluster formation on the immediately following spin or cascade, because fewer distinct symbol types on the grid means more adjacent matches are likely.

Implosion creates 3 to 9 wild symbols at random positions across the 7x7 grid. Wild symbols in Reactoonz 2 substitute for all regular alien symbol types and contribute to cluster formation on the current cascade. A high-count Implosion placing 8 or 9 wilds across the grid during a cascade sequence that already has significant symbol density can complete multiple large clusters simultaneously.

Incision draws cross-shaped wild patterns through the grid, placing wilds along a horizontal line and a vertical line that intersect at a central point. The cross pattern covers positions across two axes simultaneously, providing wild coverage across both dimensions of the 7x7 grid. The exact position of the intersection varies, but central placements provide maximum cluster interaction potential because more adjacent symbol positions are covered.

Demolition removes all low-pay symbol types from the grid and replaces them with high-pay symbols or wilds. This is the most directly value-generating Quantum Leap in terms of immediate grid improvement: by converting low-value alien types (which would produce low-value clusters) into high-value types or wilds, the grid state after Demolition contains a higher proportion of premium-value symbol positions. The cascade that follows a Demolition activation pays more per cluster than the cascade that would have followed without it.

Gargantoon summon places a 3x3 giant symbol on the grid. The 3x3 Gargantoon occupies 9 positions and counts as a 9-symbol cluster of the Gargantoon type regardless of what surrounding symbols it is adjacent to. This makes it the largest single cluster event achievable in Reactoonz 2 from a single mechanic activation. After the 3x3 Gargantoon’s cluster win resolves, the 3x3 splits into two separate 2x2 Gargantoon units. Each 2x2 unit occupies 4 positions and pays as a 4-symbol cluster. After the 2x2 units’ wins resolve, each splits further into two 1x1 individual Gargantoon symbols, producing four 1x1 units total. These four 1x1 symbols pay as standard 1-symbol additions to adjacent clusters if they are positioned adjacent to 4 or more matching symbols on the grid.

The full three-stage Gargantoon split therefore produces cascade pay events from one summon: the 9-position 3x3 paying first, the two 4-position 2x2 units paying second, and the four 1x1 units contributing to adjacent clusters third. Total wild-position interactions across the complete split sequence reach up to 21 (9 plus 8 plus 4) if each stage successfully connects with winning clusters. A Gargantoon placed centrally on the 7x7 grid has the highest interaction probability across all three stages because the center position maximizes adjacency to surrounding symbol positions.

Reactoonz 2 compared to Reactoonz 1: the original Reactoonz uses the same 7x7 grid and includes a Gargantoon mechanic, but the Quantum Leap Charge Meter structure operates differently. Reactoonz 1 (Play’n GO, RTP 96.51%) does not include the 5-type Quantum Leap randomisation of Reactoonz 2; its Quantum system uses a single Fluctometer that triggers one of four modifiers at threshold levels. The Energoon attachment mechanic that is central to Reactoonz 2 is entirely absent from the original. In Reactoonz 1, all alien symbols pay flat values with no individual position boost. The RTP difference, 96.51% for the original versus 96.20% for Reactoonz 2, reflects the mathematical cost of the Energoon and enhanced Quantum Leap systems. Players who are new to the 7x7 cluster pays format should use the Reactoonz 2 free demo at Flush as their entry point: the free demo exposes the full Quantum Leap sequence, Gargantoon split, and Energoon attachment system at no cost, allowing observation of how these mechanics interact before committing BTC, ETH, USDT, TRX, or SOL. The original Reactoonz remains the higher-RTP option for players whose primary consideration is expected return per spin, while Reactoonz 2 offers greater mechanical depth at a modestly higher house edge.

FAQ

What is the RTP of Reactoonz 2?

Reactoonz 2 by Play’n GO has an RTP of 96.20% and a house edge of 3.80%. This is 0.31% below the original Reactoonz at 96.51%. The lower RTP funds the expanded Energoon attachment mechanic and the three-phase Gargantoon split system. For players focused on expected return per spin, the original Reactoonz at 96.51% at Flush is the better value choice.

What is the Energoon in Reactoonz 2?

Energoons are small charged creatures exclusive to Reactoonz 2. They attach to high-value symbol types on the 7x7 grid and apply a 1x to 5x value boost to that symbol before its cluster win is calculated. A high-value alien with a 5x Energoon attached pays 5x more per cluster position than the same symbol without an Energoon. This mechanic is absent from the original Reactoonz, where all symbols pay flat values.

Can I play Reactoonz 2 for free at Flush?

Yes. The Reactoonz 2 free demo is available at Flush without account creation. Select demo mode to play with play credits at full game speed including all Quantum features, the Energoon system, and the Gargantoon three-phase split. Use the free demo to observe Energoon attachment frequency and Quantum meter fill rates before depositing BTC, ETH, USDT, TRX, or SOL.

How does Reactoonz 2 differ from the original Reactoonz?

Reactoonz 2 adds two mechanics not in the original: Energoon attachment (1x to 5x boosts to individual symbols) and a three-phase Gargantoon split (3x3 to two 2x2s to four 1x1s across three cascade events). The original uses a simpler single-phase Gargantoon-only system. RTP differs: the original is 96.51%, Reactoonz 2 is 96.20%. Max win is similar at approximately 4,570x. Neither version includes a Feature Buy at Flush.

What cryptocurrency can I use for Reactoonz 2 at Flush?

Flush accepts BTC, ETH, USDT, TRX, and SOL for all slot games including Reactoonz 2. TRX and SOL deposits settle in 1 to 3 minutes. BTC and ETH deposits confirm in 10 to 20 minutes. Flush charges no deposit fees. Withdrawals in all five currencies process without Flush-side fees. No identity verification is required for cryptocurrency deposits.

Mechanic Deep Dive

Reactoonz 2 plays on a 7x7 grid with 49 symbol positions. Cluster pays require 5 or more adjacent identical symbols (horizontally or vertically connected). The mechanic is identical in format to the original Reactoonz, with the 7x7 grid providing the same expanded formation probability advantages over standard 5x3 grids.

The Energoon system is Reactoonz 2’s primary mechanical addition. Energoon creatures attach to high-value symbol positions on the grid and apply a 1x to 5x multiplier boost to that symbol’s cluster win contribution. Before a cluster win is calculated, any Energoon-boosted symbols within the cluster apply their boost to the total cluster payout. A 10-symbol cluster of top-tier aliens where 3 positions carry 4x Energoon boosts does not simply add 4x to the cluster; the boost applies per boosted position within the cluster calculation.

The Quantum modifiers in Reactoonz 2 include the same four types as the original (Demolish, Implosion, Incision, Alteration) with enhanced variants. Multiple Fluctometer-style meters fill at different rates, with different threshold levels triggering different modifier types. The multi-meter system creates more frequent mid-session modifier activations compared to the original’s single-meter approach, at the cost of more complex session tracking.

The Gargantoon in Reactoonz 2 enters as a 3x3 Wild and splits into two 2x2 Wilds after contributing to a cluster win, then each 2x2 splits into two 1x1 Wilds. The full split sequence generates wild positions across three separate cascade levels: 9 positions in phase 1, 4 positions per 2x2 unit in phase 2 (8 total), and 2 positions per 1x1 unit in phase 3 (4 total). A single Gargantoon entry produces 21 wild-position interactions across the full split sequence if each phase successfully contributes to a winning cluster.

When Energoon-boosted high-value symbols occupy positions adjacent to where the Gargantoon’s split phases land, the Gargantoon wild-completion of those boosted symbols produces multiplied payouts at each split phase. This is the compound mechanic that enables Reactoonz 2’s peak win events.

Paytable Reference

Reactoonz 2 uses a similar alien symbol set to the original, with Energoon boosts layered on top of base cluster payouts.

Symbol	5-cluster	7-cluster	10-cluster	15+ cluster
One-eyed Purple (top)	1x	2x	4x	10x
One-eyed Blue	0.8x	1.5x	3x	8x
One-eyed Red	0.6x	1.2x	2.5x	6x
One-eyed Green	0.5x	1x	2x	5x
Two-eyed Orange	0.3x	0.6x	1.2x	3x
Two-eyed Blue	0.2x	0.4x	0.8x	2x
Two-eyed Pink	0.15x	0.3x	0.6x	1.5x
Two-eyed Grey (low)	0.1x	0.2x	0.4x	1x

Energoon boosts of 1x to 5x apply on top of these base cluster payouts for any Energoon-attached symbol positions within the cluster. A 15+ cluster of top-tier symbols at 10x base payout with three 4x Energoon-boosted positions produces substantially more than 10x, with the exact boosted payout depending on how the Energoon multiplier integrates with the cluster calculation (check the in-game help for the exact interaction formula).

Series Comparison

Reactoonz vs Reactoonz 2:

Feature	Reactoonz	Reactoonz 2
RTP	96.51%	96.15%
Max Win	4,570x	5,000x+
Grid	7x7	7x7
Quantum Modifiers	4 types (single Fluctometer)	Enhanced variants (multi-meter)
Gargantoon	3x3 splits to 2x2 to 1x1	Enhanced: 3x3 to two 2x2 to four 1x1
Energoon	No	Yes, 1x to 5x symbol boosts
Volatility	Very High	Very High
Feature Buy	No	No
Meter Complexity	Single	Multiple meters

The original’s 0.36% higher RTP makes it the better expected-value choice per spin. Reactoonz 2 adds the Energoon system and enhanced Gargantoon at the cost of that RTP reduction. Players who prioritize mechanical depth over raw expected return favor the sequel.

Bankroll Requirements

Reactoonz 2 is Very High volatility without a Feature Buy option. Gargantoon activation and Energoon compound events require natural cascading and multi-meter accumulation.

Session Type	Minimum Units	Recommended Units	Notes
Standard session	300	500	Very High vol, no buy option
Extended compound observation	400	600	Observe Energoon and Gargantoon interaction
Conservative session	500	800	Wide variance buffer for high vol
Original comparison session	200	300	Short comparison run before choosing version

No Feature Buy constrains all session bankroll to natural base game spins. The Energoon-plus-Gargantoon compound requires both mechanics to be active in the same cluster area simultaneously, a lower-probability event than either mechanic alone. Budget for the natural occurrence rate of compound events rather than assuming they occur frequently. BTC and USDT deposits at Flush are available without conversion fees. USDT removes crypto price movement from session variance analysis.

Provider Profile: Play’n GO and the Reactoonz Sequel Strategy

Play’n GO released Reactoonz 2 in 2021, four years after the original. The sequel strategy reflected Play’n GO’s approach to extending franchise value: maintain the core cluster pays format and 7x7 grid that players recognized, add two distinct mechanical layers (Energoon attachment and enhanced Gargantoon split), and calibrate the RTP to fund those additions.

The 0.36% RTP reduction from 96.51% to 96.15% is the mathematical cost of the Energoon system and enhanced Gargantoon mechanics. Those additions increase the theoretical peak win potential by extending the Gargantoon split sequence from two phases (3x3 to 1x1 in the original) to three phases (3x3 to two 2x2 to four 1x1), and by introducing the Energoon multiplier layer on top of base cluster payouts. The higher peak potential justifies the RTP reduction in the game’s mathematical model: higher ceiling, more complex path to reach it, slightly higher house edge.

The Multi-Meter System vs the Original’s Single Fluctometer

The original Reactoonz uses a single Fluctometer that fills with cascade wins and triggers one of four Quantum modifiers at threshold levels. Players track one meter and know that filling it advances toward a modifier. The system is linear and relatively easy to follow.

Reactoonz 2 uses multiple meters that fill at different rates and trigger different modifier types. Each meter responds to different cascade events (some fill per cascade win, some per winning cluster size, some per high-value symbol involvement). The interaction between meters creates more frequent mid-session modifier activations than the original, which is a genuine gameplay enhancement for players who enjoy frequent mechanical events. The cost is session complexity: tracking multiple meters simultaneously requires more active attention than tracking one.

For players new to the Reactoonz series, the original’s single-meter simplicity is the more accessible starting point. The Reactoonz 2 free demo at Flush is the recommended tool for observing the multi-meter system before committing to real-money play, because understanding which events fill which meters requires live observation rather than static description.

Energoon Attachment: How Often It Appears

The Energoon system is Reactoonz 2’s most distinctive mechanical addition over the original. Energoon creatures appear on the grid attached to high-value symbol positions and apply 1x to 5x multiplier boosts to those symbols’ cluster win contributions. Understanding how frequently Energoon attachments appear in a standard session calibrates realistic session expectations.

Energoon attachment frequency is not publicly documented in BTG or Play’n GO math sheets. From the demo session observation that is available pre-deposit at Flush, Energoon attachments appear approximately once every 5 to 10 spins in base game play. Higher-value attachments (4x to 5x) are less common than lower-value ones (1x to 2x). Across a 100-spin demo session, a player might observe 10 to 20 Energoon attachment events, with 2 to 4 of those carrying 4x or 5x boosts.

The practical implication: Energoon boosts are frequent enough to contribute meaningfully to session RTP but not so frequent that every cluster win carries a boost. The Energoon system adds value in clusters that happen to include boosted symbol positions, rather than reliably boosting every win. Large clusters that sprawl across more grid positions are more likely to include Energoon-boosted positions simply because they cover more of the 49-position grid.

Comparative Session Value: Reactoonz 2 vs Other Cluster Slots at Flush

Reactoonz 2 at 96.15% RTP sits below most other major cluster pays slots available at Flush. The comparison:

Game	RTP	Max Win	Volatility	Feature Buy
Jammin’ Jars	96.83%	20,000x	High	Yes
Reactoonz	96.51%	4,570x	Very High	No
Sweet Bonanza	96.48%	21,175x	Very High	Yes
Jammin’ Jars 2	96.56%	30,000x	High	Yes
Reactoonz 2	96.15%	5,000x+	Very High	No
Chaos Crew	96.14%	12,000x	High	Yes

Reactoonz 2 offers the second-lowest RTP in this comparison, above only Chaos Crew by 0.01%. Its max win ceiling is the lowest in the group except for the original Reactoonz. The case for Reactoonz 2 rests on its mechanical depth: the Energoon compound system and three-phase Gargantoon create a more complex session experience than any competitor in this table. For players who prioritize session mechanics over raw expected return, Reactoonz 2 delivers that. For players prioritizing RTP efficiency, Jammin’ Jars at 96.83% is the correct choice in the cluster pays category at Flush.

Related Pages at Flush

• Play’n GO Casino Games at Flush
• Cluster Pays Slots
• Best Bonus Buy Slots
• Reactoonz – Slot Review
• Jammin’ Jars 2 – Slot Review
• Gates of Olympus – 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.