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Game Provider: Play’n Go

RTP: 94.25%

Paylines: Cluster Pays

Min Bet: €0.20

Max Bet: €100

Progressive: No

Type: Video Slot

Theme: Cartoon, Cyberspace

Volatility: High

Release Date: 27/01/2022

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Now that fishing and book-themed games are arguably overused, a provider needed to step up to the plate with something innovative.

Play’n Go was up to the task when releasing the Reactoonz series of titles, which of course, includes the Gigantoonz slot. Like the games that came before it, Gigantoonz is seemingly set in outer space, with a series of multicoloured blob characters taking centre stage!

The board in this release features 8 reels and 8 rows, meaning that a maximum of 64 symbols can be in view at any one time. It’s also worth mentioning that Gigantoonz includes a cascade mechanic, meaning that any combinations will be removed from the board.

Fresh icons will then appear from above in order to fill the space left behind. Players can spin this slot with a minimum stake size of 0.20, with the maximum potential winnings sitting at 4,000x the bet.

As we mentioned earlier, Gigantoonz is a release from Play’n Go, a titan in the online casino slots industry. Their portfolio is impressive, to say the least, including popular games such as Rise of Olympus, Wild North, and Moon Princess, to mention just a few. Of course, all Play’n Go titles are carefully optimised for play on mobile devices, with Gigantoonz being no exception.

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Game Features

Before touching on the different icons, it’s essential to know that no fixed paylines are present in Gigantoonz. Instead, there is a cluster pays mechanic, with 6 of the same icons in adjacent positions forming a combination.

Now, the standard symbols in this release are shown as 5 Toonz with minimal detailing. These are shown as the colours yellow, green, red, purple, and blue. Premiums look similar but appear to be in a higher resolution due to the added characteristics.

Again, they are represented by colours, with the blue, orange, green, purple, and red variations awarding up to 50x, 100x, 200x, 400x, or 1,250x the stake size, in that order. There is also one special symbol, a quantum wild, displayed as an orb, which can replace any of the aforementioned icons as part of a combination.

Gigantoonz comes with a modifier that can trigger during a spin that does not form a matching cluster. Should it activate, anywhere from 5 to 10 different wild icons will be added across the board in random positions.

Mega symbols that are 2×2, 3×3, 4×4, 5×5, 6×6, or 7×7 may drop into view when spinning this title. They only count as one symbol in terms of forming a cluster; however, during the evaluation of potential winnings, they can represent up to 13 different icons.

If mega symbols are removed as part of a cluster, they will leave behind a wild. Furthermore, if there is no space below the giant icon to drop into, the positions will be filled with smaller, 1×1 variations.

As for the main bonus, it’s split into four different features that revolve around the meter shown below the sleeping Gargantoon on the right of the board. Whenever a matching cluster is formed, the corresponding number of symbols will be added as ‘charges’, with modifiers being applied at 25, 50, 75, and 100 charges. These charges must all occur during the same spin, as the meter will be reset between plays.

If 25 charges accumulate, the ‘Disintegration‘ modifier will remove all instances of 4 random symbols. With 50 charges on the meter, the ‘Metamorphosis‘ feature will turn all variations of one symbol into another. The ‘Radiation‘ mechanic at 75 charges will add 1, 2, 3, or 4 mega symbols to the board alongside 2, 3, 4, or 5 wilds.

Should players collect all 100 charges, all mega icons in play will transform into Gargantoonz, with a minimum of three being guaranteed. These do not cascade like standard symbols. In addition to this, 2, 3, or 4 regular-sized Gargantoonz will appear on the reels.

After this phase of the feature is complete, all mega Gargantoonz will break down into 1×1 sized icons. Matching clusters will then be calculated before any potential winnings are awarded to the player.


  • Unique theme and appearance
  • Innovative range of mechanics
  • Suitable for mobile devices


  • Highly volatile slot
  • Features can be overwhelming at first


Landing clusters of icons will charge the meter in relation to how many symbols were a part of the combination. For example, a cluster of 10 symbols will add ten charges. 

Players can spin Gigantoonz with a minimum stake size of 0.20. 

Yes, at the top of this page, players who are logged in can find a demo version of Gigantoonz.

In Gigantoonz, all modifiers will be applied if a total of 100 charges are accumulated during the same spin.


Chris GrandHead of Content

I’m an experienced casino review and news writer with years of knowledge on my back. The experience I’ve had online is essential for the casino reviews I write on this website, written in an easy-to-read format that readers can recognize and connect with.

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