Twisted Lab RotoGrid (Hacksaw Gaming) – Slot Review

Hacksaw Gaming transports us to a secret laboratory, where a mad scientist and his pet rat conduct various experiments. The game background vividly depicts the laboratory, filled with pipes, computers, and vats of mysterious liquids. The setting is dynamic, with the scientist on the left and the rat on the right of the reel set. Symbols include an array of peculiar items like eyeballs, tentacles, and oozing beakers. Entering the Free Spins feature brings the lab to life with bright glows from the ooze and heightened chaos. The visual aspects are stunningly crafted, with a pleasing aesthetic achieved through vibrant colors and detailed artwork.
Twisted Lab RotoGrid features a 5-reel by 5-row setup with 19 fixed pay lines. This high variance slot offers an RTP of 96.30% and a maximum win capped at 15,000x your bet. Players can wager between £0.10 and £100.
Twisted Lab RotoGrid Symbols & Pay Table

The game includes 16 symbols in total. The four low-paying symbols are represented by Feathers, Holly, Eggs, and Mushrooms. The four premium symbols include Tentacles, Eyes, Teeth, and Brains. Additional symbols are the RotoGrid Symbol, Purple Oozing Beaker, Blue Oozing Beaker, Pink Oozing Beaker, Free Spins Scatter, Blue Twister Symbol, Pink Twister Symbol, and Collector Symbol. The highest paying symbols are the Oozing Beaker Symbols, each paying 10x for 5 across a pay line.
Twisted Lab RotoGrid Features & Mechanics

RotoGrid Feature
The RotoGrid Symbol can land charged with 1 to 4 90-degree clockwise rotations. Each charge causes the entire grid to rotate by 90 degrees. Wins from the initial drop are calculated and collected before the RotoGrid symbol activates.
Oozing Beakers
When the RotoGrid symbol causes the grid to rotate, any Oozing Beakers on the reel set break, spilling their contents to the bottom of the reel set. All positions covered by the ooze become Wilds that substitute for all regular symbols.
- Purple Oozing Beakers: Do not contain multiplier values.
- Blue Oozing Beakers: Contain multiplier values of 2x, 3x, 4x, 5x, 10x, 15x, 20x, 25x, 50x, or 100x.
- Pink Oozing Beakers: Contain multiplier values of 2x, 3x, 4x, 5x, or 10x.
If ooze spills over previously oozed positions, the multiplier values are added together and applied to all oozed positions on that reel. If Blue Ooze combines with Pink Ooze, their multipliers add together, creating a Green Ooze multiplier. If Blue or Pink Ooze combines with Purple Ooze, the multiplier from Blue or Pink applies to the entire ooze area on that reel.

Unleash The Ooze! Bonus
Landing 3 Scatters during a base game spin triggers the Unleash The Ooze Bonus, awarding 10 Free Spins. During this feature, there is an increased chance of landing RotoGrid Symbols and Oozing Beakers. This feature can be purchased for 100x your chosen stake size.
The Twist Of The Twisted Bonus
Landing 4 Scatters during a base game spin triggers The Twist Of The Twisted Bonus, awarding 3 lives. The game transforms, featuring only Blue Twisters, Pink Twisters, Collect Symbols, RotoGrid Symbols, and non-paying symbols. Four multiplier values are displayed on each Twister, with the top value being the current multiplier. When the grid rotates, the value at the top of the symbol becomes the new value.
- Possible Blue Twister Multipliers: 1x, 2x, 3x, 4x, 5x, 10x, 15x, 20x, 25x, 50x, 100x, or 1,000x.
- Possible Pink Twister Multipliers: 1x, 2x, 3x, 4x, 5x, 10x, 15x, 20x, 25x, 50x, 100x, 1,000x, x2, x3, x4, x5, or x10.
Blue Twisters rotate when a RotoGrid Symbol lands, while Pink Twisters rotate on every new Free Spin and an additional time when a RotoGrid Symbol lands. Twisters remain on the grid until collected or the end of the feature.
A Collector Symbol, when landed, activates at the end of the current Free Spin, collecting the multiplier values of all Twisters on the reel set. The bonus has 3 refilling lives, which reset each time a Twister or Collect Symbol lands. Once all lives are consumed, the bonus ends, and the current Twister and Collect Symbols are added or multiplied together. This feature can be purchased for 200x your chosen stake size.
Conclusion
Overall, Twisted Lab RotoGrid impresses with its striking visuals and somewhat creative theme. The game introduces the innovative RotoGrid mechanic, adding an element of fun and excitement to the gameplay. Players will also encounter Oozing Beakers with multipliers up to 100x and two distinct bonus features. This game is a fantastic creation by Hacksaw Gaming and definitely worth checking out. Be sure to try out this game on launch and check out our exclusive casino offers.