Twisted Lab Demo

Twisted Lab Slot Review 2024

Hacksaw Gaming is back with their brand new release, Twisted Lab RotoGrid!

A game that includes one-of-a-kind bonus features, from Oozing Breakers to the Unleash-The-Ooze Feature, Twisted Lab RotoGrid is stacked with quirky ideas.

Hacksaw Gaming always add unique aspects to its titles, such as special characters and spreading win multipliers, so the ideas behind Twisted Lab RotoGrid do not surprise us.

We are excited about what Hacksaw Gaming has in store for us!

Twisted Lab - Base Game

Twisted Lab – Base Game

Base Game & Features

Twisted Lab RotoGrid is a 5-reel, 3-row slot with 19 active pay lines per spin. It has a range of betting options varying from £/€0.10 to £/€100 per spin.

The game contains eight symbols, all of which have the same paying ability. The feather, leaf, egg, mushroom, eyeball, teeth, brain, and tentacle pay out wins worth between 0.5 and 5 times the bet when five of the same land. 

Pay attention to the beaker symbol, the game’s Wild. It pays 10x the bet for a winning combination of five. As with any other wild symbol, it can replace any regular paying symbol.

Twisted Lab RotoGrid has a theoretical return to play rating of 96.3%, a maximum win cap of 15,00x the bet, and a High Volatility rating. Hacksaw Gaming has also released lower RTP rates versions of 94.2%, 92.18%, and 88.23%.

Game Provider Hacksaw Gaming
Maximum Bet 100
Maximum Win 15,000x
Paylines 19
Release Date 27/06/2024
RTP 96.3%, 94.2%, 92.18%, 88.23%.
Mechanics Video Slot
Volatility High
Reels 5
Minimum Bet 0.10

RotoGrid Symbol

The RotoGrid symbol is chaos and unlike anything we have seen before. It can land during any spin and may have 1, 2, 3, or 4 90-degree turns. Every turn of the symbol causes the playing grid to rotate, making new opportunities to land cash prizes. 

Oozing Breakers

If and when the grid rotates, there are oozing beakers that crack, and everything inside will fall to the bottom of the grid. Each position covered in ‘ooze’ becomes Wild, removing all paying symbols from the grid.

There are three types of ooze beakers – Purple, Blue, and Pink. Each ooze beaker is different and contains a different incentive. Purple ooze beakers do not have any multiplier values. The pink ooze beakers hold multiplier values between 2x and 10x, while the blue ooze beakers are catalysts for bigger wins with a value of between 2x and 100x.

If ooze covers a space already covered, the two colours mix, and the multipliers are combined, creating a more powerful substance. A mixture of pink and blue will create a green ooze that holds a multiplier worth the sum of the pink and blue added together.

Once blue or pink ooze mixes with purple, the multiplier spreads across the whole oozed area.

Bonus Buy

Twister Lab RotoGrid has five bonus buy options, all of which are highly volatile.

  • Bonushunt Featurespins – 3x the bet, and spins are five times more likely to trigger a bonus game.
  • RotoGrid Feature Spins – Worth 50x the bet, and each spin has one or more blue oozing beakers and RotoGrid symbols.
  • Oozing RotoGrid Feature Spins – Pay 75x the bet and receive at least two blue oozing beakers and one RotoGrid symbol.
  • Unleash The Ooze – For 100x the bet, you trigger the feature.
  • The Twist of the Twisted – Pay 200x the bet, and you will start the feature.

Unleash the Ooze: Free Spins

This round is triggered when you land 3 Scatter symbols simultaneously. Once triggered, you will receive 10 Free Spins. There is also an increased chance of landing Oozing Breakers, Scatters, and RotoGrid symbols.

Twisted Lab - Unleash the Ooze Free Spins

Twisted Lab – Unleash the Ooze Free Spins

The Twist of the Twisted

The Twist of the Twisted round is triggered when 4 Scatters hit, awarding 3 Lives. Only blue and pink twisters, RotoGrid, Collect, and non-paying symbols can land once this feature begins.

You will see 4 Multiplier values appear on each twister symbol. The value at the top is the current value, but when the grid begins to turn, the value that finishes at the top becomes the new multiplier. Blue twisters can have a value of 1 to 1,000 times, while pink twisters hold a value of either 2 to 10 times or 1 to 1,000 times.

When the RotoGrid symbol lands, the blue twister symbols turn in unison with the playing grid. The pink twisters turn on every new free spin or when a RotoGrid symbol lands. 

During this feature, there is always a chance of landing the Collector symbol. It collects the multiplier values from every twister on the grid and becomes active at the end of a spin. Whenever a twister or collector lands, the life counter resets to 3. You lose a life after every unsuccessful spin.

Twisted Lab - The Twist of the Twisted Bonus

Twisted Lab – The Twist of the Twisted Bonus

Pros and Cons of Twisted Lab


  • Visually pleasing and creative design
  • 15,000x maximum win cap
  • Two bonus rounds


  • Difficult to follow for inexperienced slot players
  •  The High Volatility rating

Similar Slots to Twisted Lab

  • Professor Clank’s Combinator (ReelPlay)
  • Electric Charge (Games Global)
  • Dr Reactive’s Laboratory (Red7)


It’s safe to say playing Twisted Lab RotoGrid is a whirlwind. Hacksaw Gaming did not hold back on bonus features, which are all action-packed and exciting.

The twist of the twisted bonus feature is unreal but also mind-boggling. It has all the things you could ask for in a slot. It is fun and intriguing, but it can seem too much and could easily lead to confusion. 

When you compare Twisted Lab RotoGrid to new slots, nothing comes close. On top of the bonus game and gameplay, it also has an above-average 15,000x max win.

We can confidently say Hacksaw Gaming smashed this release out of the park, and we are looking forward to seeing what they come up with next!