loader search icon


rating star rating star rating star rating star rating star rating star

Charge up the Quantumeter with the all-new Gigantoonz slot from Play’n GO with Mega Wilds and wins of up to 4,000x your stake.

play button icon Play for real

Gigantoonz Review

  • Hot Game icon HOT

Responsible Gambling

We are committed to ensuring online gambling is enjoyed responsibly. You have to be 18 years or older to access our free games. Please confirm that you are at least 18 years old.

Affiliate Disclosure: We at CasinoWow, want to ensure that you will find only licensed and regulated online casinos reviewed or recommended by our experts. However, our content has affiliate links, meaning we may receive a commission payment when a player registers or deposits at a chosen online casino. This is at no additional cost to you and should not affect your gambling preference for a casino.

Slot Overview

slot machine icon Name


chef hat icon Released


customer icon Provider

Play'n GO

platform icon Platform

Desktop, Tablet, Mobile

Slot Details

RTP icon RTP


Volatility icon Volatility


Jackpot icon Jackpot

4000x bet

paylines icon Paylines

Cluster pays

Reels icon Reels


Rows icon Rows


Min. bet icon Min. bet


Max. bet icon Max. bet



Game Rating


casino-rating-play1.svg Graphics

rating star rating star rating star rating star rating star rating star


Sound Effects

rating star rating star rating star rating star rating star rating star


Loading Time

rating star rating star rating star rating star rating star rating star


Game Features

rating star rating star rating star rating star rating star rating star


Big Win Potential

rating star rating star rating star rating star rating star rating star


Mobile Gaming

rating star rating star rating star rating star rating star rating star


The Overall Rating of this casino game was calculated based on our research and data collected by our casino games review team. Learn more about Our Review Process

Game Review

Gigantoonz Slot

The Reactoonz is a popular online slot game that has become a go-to among Play’n GO fans. Now the popular game is about to get even bigger and better with the release of Gigantoonz.

Think of it as a combination of some of the best elements from Reactoonz 2 and Dr Toonz along with cluster wins. On top of it, all the quirky critters are accompanied by a range of exciting features that can unlock big wins of up to 4,000x your stake.

It’s another must play in the Reactoonz series by Play’n GO complete with giant symbols, a Quantumeter and Gargantoonz modifier.

Theme, Soundtrack and Symbols

Gigantoonz is another alien-themed online slot that utilizes a cascade style gameplay with cluster win mechanics. The game follows the success of Reactoonz, Reactoonz 2 and Dr Toonz from Play’n GO.

In this slot, you will notice all your familiar Toonz on the grid with some slight changes including some giant symbols which excludes the Gargantoonz. If you enjoy the alien theme with quirky characters that can lead you to big wins then this slot will tickle your fancy.

There are 10 different symbols with 1 or 2 eyes, and these include regular and mega-sized symbols.

Game Mechanics

Gigantoonz is a Play’n GO powered 8x8 grid video slot featuring a cluster pays mechanic. The slot is part of the Reactoonz series and follows the successful release of Reactoonz 2 and Dr Toonz.

You can enjoy the slot from anywhere at any time from as little as €0.20 per spin to a maximum of €1,000 per spin. The bet amount can be changed via the bet bar located below the grid. The slot also comes with an autoplay function that enables you to automate your gameplay. This can be set according to a set number of spins or functions e.g., loss or win amount.

Gigantoonz is a high volatility video slot with a return to player percentage of 96.25%. The slot RTP is slightly lower than that of Reactoonz 2, but it also features simpler gameplay. On top of that, you can look forward to triggering maximum pay-outs of up to 4,000x your stake.

Special Features

Gigantoonz is packed with features that will keep you winning including a cascading wins feature.

Cascading Wins Feature

After any winning combination, the winning symbols disappear from the reels and new symbols take their place. If another win is formed the process repeats itself.

Mega symbols

The slot is packed with mega symbols varying in size. They are between 2x2 and 7x7. These symbols count as a single symbol in a winning combination, but the cluster value will be determined by a random number that can go as high as 13.

Quantum Wilds

The Mega symbols will leave quantum wild symbols behind, and these are removed via the cascading feature. If they are unable to drop down any further, they will return to their regular 1x1 form. You can get between 5 and 10 Quantum Wilds on non-winning spins.


All winning symbols will charge your Quantometer which is located to the right of the reels. Getting the meter to 100 charges in a single cascade sequence will award 4 modifiers.

  • Disintegration – Awarded on 25 charges. This modifier will remove all instances of 4 randomly selected symbols.
  • Metamorphosis – Collect 50 charges and it will randomly transform all instances of one symbol into another. This also includes your mega symbols.
  • Radiation – Manage to collect 75 charges to add up to 4 mega symbols and 1-5 Quantum Wilds in random positions.

The Gargantoon Modifier triggers on 100 charges collected and will occur in two steps:

  • Step 1 – Mega symbols will turn into Mega Gargantoonz. Up to 3 Gargantoonz will appear no matter how many mega symbols are present. The mega Gargantoonz are not removed after wins.
  • Step 2 – Mega Gargantoonz symbols break down into 1x1 symbols which will then be removed as normal.

Play ‘On The Go’

Much like its predecessors, Gigantoonz is a highly entertaining online slot that you won’t want to play from one place alone. Thankfully the slot is created using the latest technology software. Allowing you to enjoy it from anywhere at any time via your desktop, tablet, or mobile device.

The mobile version of Gigantoonz runs as smoothly as the desktop version with a few minor changes in the layout purely to increase the viewing and gameplay pleasure. Other than that, you can look forward to enjoying the same thrilling features and big win opportunities via any Android or iOS mobile or tablet device.

CasinoWow Game Verdict

If you’re looking for a space adventure out of this world then join the quirky aliens for another run at the Mega Gargantoonz in Gigantoonz.

The slot includes simplified gameplay, more fun features, and the chance to trigger big wins of up to 4,000x your stake.

This highly volatile Play’n GO slot is another top-recommended alien theme slot from CasinoWow.

Anything incorrect or missing?

user avatar

Game Review by Niki

CasinoWow Contributor

Hey, there! It’s Niki! My power is in playing online casino games and knowing what’s best in each. I help in the creation of the most reliable casino guides to support players and get them well-prepared for their gambling time online. I am dedicated to helping my Wow Team stay on top of the game as being the SEO guru of CasinoWow!

Gigantoonz FAQs

What is the maximum pay-out of Gigantoonz?

The Gigantoonz slot has a maximum pay-out of 4,000 your bet.

What is the RTP of the slot?

The Gigantoonz slot has a return to player percentage of 96.25% which is about average for an online slot.

Can I play Gigantoonz slot for free without making a deposit?

Yes, Gigantoonz is available in 'Free to Play' mode. Hover over the game at your Play’n GO casino of choice and select the Free to Play/ Demo mode.

Can I play Gigantoonz slot on mobile?

Yes, the slot runs smoothly across all desktops, tablets, and mobile devices.

Play Gigantoonz for Real Money

Most popular

scroll next icon
scroll previous icon


CasinoWow.com Cookies

We use 🍪 cookies to improve your user experience. By continuing to use this site, you are agreeing to our use of cookies as described in our Cookie Policy.



Be the first to get exclusive bonuses and WOW casino promotions! Get access to our new online casinos, top stories and special iGaming events for FREE.