Moon Princess 100
Quantum queue or character powers?Reactoonz uses a five-meter Quantum queue. Moon Princess 100 uses three character powers, Trinity and a rising bonus multiplier.
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Reactoonz uses a 7×7 grid and clusters of five or more matching aliens. Its distinctive rhythm comes from the space between wins: queued Quantum effects intervene after ordinary cascades run out.

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Know this game
The important distinction is between the current cluster and the whole round. Wins charge the meters, queued effects can revive the grid, and only the end of the complete round resets the charge.
Inside the game
One round can move between clusters and queued powers
Reactoonz uses a 7×7 grid.
Five or more matching symbols connected horizontally or vertically form a winning cluster.
Winning symbols disappear and new symbols fall into the grid. Cascades continue until no new qualifying cluster is created.
Clusters can begin anywhere on the grid; there is no requirement to start from the leftmost reel.
This is the basic loop that powers every other mechanic because wins also feed the charge meters.
All wins during a game round contribute toward five charge meters, filled one after another.
When one meter becomes full, the game randomly adds one Quantum feature to a queue.
Each completed meter randomly queues one of these four effects:
Transforms three to six symbols into Wilds and destroys adjacent symbols.
Chooses a symbol type and transforms matching symbols into another symbol. The rules prioritise a one-eyed symbol when available.
Destroys all one-eyed symbols and their matching symbols.
Creates a central Wild and two intersecting diagonal lines of the same randomly chosen symbol. Like the other Quantum effects, it waits in the queue.
| Effect | Change to the grid |
|---|---|
| Implosion | 3–6 Wilds; adjacent symbols destroyed |
| Alteration | Matching symbols transformed; a one-eyed type is prioritised |
| Demolition | One-eyed symbols and their matching symbols destroyed |
| Incision | Central Wild and matching-symbol diagonals |
If the grid reaches a point where no further cascades are possible, the queued Quantum features trigger.
Any new wins they create can restart normal cascades and continue charging the meters.
The meters reset only when the whole game round has finished and there are no further winning combinations.
That means a long round can move back and forth between ordinary cluster wins and queued interventions.
Fill all five Quantum Leap meters to add Gargantoon to the queue.
Gargantoon occupies a 3×3 area as a Wild. Let the resulting clusters and cascades resolve.
When cascades stop, new symbols fall before Gargantoon becomes two 2×2 Wilds.
When that stage runs out of cascades, another refill precedes nine 1×1 Wilds.
Four matching normal symbols arranged as a square automatically form a Giantoon.
If one or more Giantoonz are part of a winning cluster, the win is doubled.
This is distinct from Gargantoon:
The doubling rule applies when one or more Giantoonz are in a winning cluster. It is not a separate doubling for every Giantoon in that cluster.
On each spin, one one-eyed symbol type is marked as the fluctuating symbol.
If that symbol participates in a winning combination, it leaves two Wild symbols behind.
Those Wilds can then help the same game round continue through later cascades.
This is another reason cascades matter more than the value of the first cluster alone.
The saved rules also state that on an initial non-winning spin, Gargantoon has a chance to drop four to eight Wilds onto the grid.
This is separate from the fully charged five-meter Gargantoon sequence.
Play’n GO lists the following game-level facts:
One is a five-meter feature; the other forms from a 2×2 symbol square.
They can trigger after natural cascades stop and restart the round.
They reset when the game round actually ends.
The listed 96.51% comes from Play’n GO’s game data. Check the information panel of the casino version for its own RTP.
Best suited to players who enjoy:
Less suited to players who want:
03 / The details
Catalog figures and in-game observations.
Settings may differ by version and casino.
Provider data and saved official rules describe specific game configurations. They do not certify the active RTP, controls or availability at every casino.
04 / The SlotsCollector take
Cluster wins charge five meters, queue Quantum powers and eventually release Gargantoon. The giant Wild breaks into smaller forms as cascades stop, giving the same round new chances to continue.
Reactoonz is best understood as a slot where the game round can reboot itself several times.
A normal cluster starts a cascade. Those wins charge meters. When the grid finally runs out of natural clusters, queued Quantum features can alter it. If one of those creates another win, cascades restart and the meters can continue charging inside the same paid round.
That loop explains why the five meters matter more than a conventional bonus-progress bar. They do not simply count down to one feature and reset. Each filled meter can place another tool in the queue, and a sufficiently productive round can reach Gargantoon on top of those earlier effects.
Gargantoon’s split sequence also has a clear spatial logic. A 3×3 Wild creates one large block. Two 2×2 Wilds distribute substitution power across more of the grid. Nine 1×1 Wilds spread it further. Every stage is followed by refills that can create new clusters.
Giantoonz use almost the opposite logic. They begin as four matching normal symbols in a square and become one oversized unit whose presence doubles qualifying cluster wins. The similar names are unfortunate for quick reviews, but mechanically they are unrelated.
The fluctuating symbol adds another small persistence layer. A winning cluster can leave Wilds behind, meaning the grid after a win is not merely a random replacement of what disappeared.
There is no conventional “Free Spins bonus” needed to explain why Reactoonz can produce long sequences. Its depth is already inside the base game-round architecture.
The 4,570.3× maximum describes the payout ceiling. The defining rhythm is the sequence of cluster, charge, queued intervention and renewed cluster; each continuation can change the state of the same paid round.
05 / Inside the game
Tutorial, reels and game rules.
Select any image to enlarge.
06 / Find your next game
Compare the feature, not just the theme.
Reactoonz uses a five-meter Quantum queue. Moon Princess 100 uses three character powers, Trinity and a rising bonus multiplier.
Explore gameFive or more matching symbols must connect horizontally or vertically on the 7×7 grid.
Winning symbols disappear and new symbols fall into the grid. Cascades continue while new clusters form.
Wins charge five meters. Each completed meter queues a random Quantum feature.
Implosion, Alteration, Demolition or Incision.
Gargantoon is added to the queue.
It starts as a 3×3 Wild, then splits into two 2×2 Wilds and finally nine 1×1 Wilds as cascade opportunities are exhausted.
Four matching normal symbols in a 2×2 square form a Giantoon. If it participates in a winning cluster, that win is doubled.
Play’n GO lists 96.51% as the provider RTP. It is not proof of every active casino configuration.
The provider catalog lists 4,570.3× bet.
Play’n GO’s provider catalog labels it High.
Sources & data verification
We reviewed first-party game documents and provider material. The facts below retain their source and configuration; this review does not certify a current playable demo.
Play’n GO
Saved official rules for this game; no new live session is claimed.
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