Twisted Lab RotoGrid Slot Overview

Twisted Lab RotoGrid is a casino slot from Hacksaw Gaming, introducing the crazy scientist Mr. Melker and his helper Pat the Rat, who seems to be as much a robot as an animal. In Mr. Melker's lab, RotoGrid Symbols can appear on the screen, which makes the entire grid turn 90 degrees after any win is paid out. If you make any winning combinations after the rotation, you'll once again be awarded. The grid can rotate up to four times on one spin.

Hacksaw Gaming has also prepared some great bonus games for you. Three FS Scatter Symbols will trigger a Free Spins round called Unleash the Ooze, while 4 symbols give you the Twist of the Twisted bonus game, which is a respin feature with special symbols and 3 starting lives. What are you waiting for? Mr. Melker is ready to see you.

A casino slot in a lab.

Twisted Lab RotoGrid is a video slot from Hacksaw Gaming with 5 reels, 5 rows, and 19 paylines. The Min.bet is 0.1, and you can chip in up to the Max.bet of 100. The game's RTP of 96.3% slightly changes in the Feature Buy options, and the volatility is high. Taking home the max win will add 15,000X the bet to your account.

In this upside-down world with a twisting grid, many different things can happen. The features in Twisted Lab RotoGrid are Wild Symbol, RotoGrid, Oozing Beakers, Unleash the Ooze!, The Twist of The Twisted!, and Feature Buy.

Twisted Lab RotoGrid Slot Information

The twisted lab belongs to the crazy-looking scientist Mr. Melker, who is standing to the left of the reels in a dark laboratory. He's holding a purple beaker in one hand and a green one in the other. A beaker is a laboratory equipment that is generally cylindrical with a flat bottom. A see-through glass cover on Melker's head reveals the scientist's brain beneath. On the other side of the grid is a rat wearing VR goggles. To make a win, you have to land 3 or more symbols of the same type on any of the 19 paylines. All wins must start on the first reel to the left, and the game is available on mobile phones, notepads, and desktop computers.

The symbols are pretty nasty in Twisted Lab RotoGrid, and they would fit better in a witch hut than in a professional lab. The lower-paying ones are feather, leaf, egg, and mushroom. Scoring a 5-of-a-kind win with them awards between 0.5X and 1X the bet. The higher-paying symbols are tentacle, eye, jaw, and brain. These four body parts pay between 2X and 5X the bet for a 5-of-a-kind win. There are 3 different beakers acting as Wild Symbols, substituting all mentioned symbols in making wins. They are also the best-paying symbols, giving you 10X the bet for a win containing 5 symbols. They don't substitute the FS Scatter Symbol or the RotoGrid Symbol.

Twisted Lab RotoGrid Slot Features

What is the max win in the slot Twisted Lab RotoGrid?

You can win up to 15,000X the bet.

What features are available in the slot Twisted Lab RotoGrid?

The features are Wild Symbol, RotoGrid, Oozing Beakers, Unleash the Ooze!, The Twist of The Twisted!, and Feature Buy.

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Wild Symbol

The Beaker Symbols are Wild Symbols, substituting all regular paying symbols in making wins. Purple Oozing Beaker Symbols don't appear in the "Unleash the Ooze!" bonus feature.

RotoGrid

The RotoGrid symbol can land on the grid, charged with 1 to 4 ninety-degree clockwise rotations. Each charge causes the entire grid to rotate by 90 degrees, creating more chances for payline wins! Wins from the initial drop are calculated and collected before the RotoGrid symbol activates.

Oozing Beakers

When the RotoGrid symbol rotates the grid, any Oozing Beakers on the grid will break, spilling their contents to the bottom of the grid. All positions covered by the ooze become wild symbols, substituting for all symbols in the paytable.

Purple Oozing Beakers: Do not contain multiplier values.

Blue Oozing Beakers: Add multiplier values. Possible values include: 2x, 3x, 4x, 5x, 10x, 15x, 20x, 25x, 50x, and 100x.

Pink Oozing Beakers: Multiply multiplier values. Possible values include: x2, x3, x4, x5, x10.

If the ooze covers the previous ooze, the multipliers are added together and applied to all oozed positions on that reel. If blue ooze combines with pink ooze, their multipliers add together, resulting in a green ooze multiplier. If blue or pink ooze combines with purple ooze, the multiplier from the blue or pink ooze applies to the entire combined ooze area on that reel.

Unleash the Ooze!

Activate this bonus feature with 10 free spins by landing 3 FS scatter symbols at the same time during the base game. During this bonus, there's an increased chance of landing RotoGrid symbols, FS symbols, and Oozing Beakers!

The Twist of the Twisted!

Activate this bonus feature with 3 lives by landing 4 FS scatter symbols at the same time during the base game. In this bonus, the game changes to only show Blue Twisters, Pink Twisters, Collect symbols, RotoGrid symbols, and non-paying symbols.

Four multiplier values are displayed on each Twister. The top value is the current multiplier. When the grid rotates, the value that moves to the top becomes the new current multiplier.

Blue Twister: Adds multipliers, possible values include: 1x, 2x, 3x, 4x, 5x, 10x, 15x, 20x, 25x, 50x, 100x, 1000x.

Pink Twister: Multiplies multipliers, possible values include: 1x, 2x, 3x, 4x, 5x, 10x, 15x, 20x, 25x, 50x, 100x, 1000x, x2, x3, x4, x5, x10.

Blue Twisters rotate with the grid when a RotoGrid symbol lands. Pink Twisters rotate with every new free spin and additionally with the grid if a RotoGrid symbol lands. During the feature, landing a Collector symbol activates it at the end of the current free spin, collecting the multiplier values of all Twisters on the grid.

Twisters stay on the grid until collected by a Collector symbol or until the end of the feature. The bonus has 3 refilling lives that reset each time Twisters or Collector symbols land. Each life represents one free spin. Once all 3 lives are used without a reset, the bonus feature ends.

At the end of the bonus, current Twister and Collector symbols on the grid are added or multiplied depending on their values, then multiplied by your bet to give the final win.

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Feature Buy

You can purchase special features directly from the main game by pressing the Buy Bonus button. The game offers the FeatureSpins buy option, where each spin guarantees certain features at a set cost based on your current bet level.

RTP for Bonushunt FeatureSpins: 96.28%

RTP for RotoGrid FeatureSpins: 96.32%

RTP for Oozing RotoGrid FeatureSpins: 96.27%

RTP for Unleash the Ooze! 96.29%

RTP for The Twist of the Twisted! 96.33%

Twisted Lab RotoGrid Slot Conclusion

Twisted Lab RotoGrid is like stepping into a mad scientist's dream, where every spin feels like an experiment gone right (or hilariously wrong). With Mr. Melker and his robo-rat sidekick Pat the Rat, you'll be laughing – and hopefully winning – as the grid twists and turns like it's been hit by one of Melker's wild concoctions. Each spin offers a chance for the entire grid to rotate up to four times, maximizing your chances to score big.

The wild beaker symbols and the ooze spilling from them whenever the grid twists are really nice details in this casino slot. Best of all is that the beakers provide you with juicy multipliers.

The Unleash the Ooze! bonus gives you 10 free spins with more RotoGrid symbols and beakers on the reels. But if you're ready to really go down the rabbit hole, the Twist of the Twisted! bonus feature cranks up the madness with multiplier-packed Twisters and Collect symbols that can make your winnings skyrocket.

And hey, if patience isn't your thing, just hit the Feature Buy button and dive straight into the action without waiting for the right symbols to land. The default RTP of 96.3%, which is better than the average slot, is slightly higher or lower, depending on what bonus game you purchase.

If you want more crazy scientists, we're happy to inform you that there are plenty out there in the iGaming world. Peter & Sons' Mutagenes takes you to a lab full of aliens, and Dr. Watts Up has more traditional research animals like monkeys.

Twisted Lab RotoGrid by Hacksaw Gaming is made for players who are up for some scientific shenanigans or simply the thrill of a rotating grid.