How to Play Gigantoonz slot

Alien slot action has landed at online casinos, and it’s out of this world.

Gigantoonz is a fantastic RNG-based online slot machine from Play’n GO featuring the cluster pays mechanic.

The title is played on an 8×8 game grid, where matching six or more identical symbols will award a win.

Gigantoonz has very high volatility gameplay, is packed with interstellar special features, and fits perfectly into this player-favourite series.

When you’re ready to start playing Gigantoonz, make sure you understand the game rules and key terms like house edge and paylines before playing with any real money.

When you’re ready, select your bet size and get ready to spin the reels on top online sites like Hippozino Casino.

Theme and graphics

Gigantoonz is an alien invasion of the highest order with bright, cartoon-style graphics set in an intergalactic environment.

The electrifying animations and expertly rendered bonus symbols lead to impressive features and help to bring together the space-age theme of this popular slot game game

Symbols and pay table

View the pay table below for the payouts you can expect for matching different-sized clusters of identical symbols:

Yellow Blob0.
Green Blob0.
Red Blob0.200.200.300.500.600.601.002.004.0010.00
Purple Blob0.200.200.300.500.600.601.002.004.0010.00
Blue Blob0.300.300.500.701.001.503.005.0010.0020.00
Blue Alien0.300.300.500.701.502.005.0012.5030.0050.00
Orange Alien0.400.500.600.802.002.507.5020.0040.00100.00
Green Alien0.400.500.801.003.005.0012.5025.0075.00200.00
Pink Alien0.501.
Red Alien1.002.005.0010.0020.0020.0050.00100.00200.001250.00

Gigantoonz slot features & bonus games

Despite missing some of the features of its predecessor, the Gigantoonz slot game still offers plenty of bonus action. In the base game, non-winning spins could randomly receive five to ten quantum wilds.

Mega Symbols

Mega symbols come in varying sizes and offer a random cluster value when forming wins. Mega symbols forming part of a win will leave a wild behind when disappearing.

If a mega symbol can’t move during a tumble, all unoccupied spaces will fill with a 1×1 version of the symbol.


The symbols from winning clusters fill the Quantumeter, which triggers four modifiers at different levels:

Disintegration: reach 25 charges to remove all instances of four randomly chosen symbols.

Metamorphosis: reach 50 charges to transform all one random symbol into a different symbol.

Radiation – collect 75 charges to receive up to four mega symbols and two to five wilds.

The final level is Gargantoonz, which is triggered when you collect 100 and occurs in two steps: first, all mega symbols turn into mega Gargantoonz, so you have a minimum of three on the grid that won’t disappear after forming a win. Plus two to four Gargantoonz appear. Next, mega Gargantoonz breaks into 1×1-sized Gargantoonz that are removed following a win.

Bet sizes, max win & RTP

Gigantoonz offers an RTP of 96.25% and a max win potential of 4,000x.

You can alter your bet from 0.20 up to 100 using the console, where you’ll also see the green spin button and orange auto spin.

Popular Play’n GO slot games

Try the previous games, Reactoonz and Reactoonz 2, for more grid slots, and be sure to check out the latest releases from Play’n GO and the rest of our great providers.

Play at online casinos
William Hill Casino review
William Hill Casino review

Get 100 Free Spins When you Stake £10

Hippozino Casino review
Hippozino Casino review

200% bonus up to £50 & 50 free spins

Mr SuperPlay casino review
Mr SuperPlay casino review

Claim a 100% 1st deposit bonus up to £100 & 20 free spins

888 Casino review

88 free spins & 100% up to £100