Mad Labs Slot Review

About the Game

• Free spins with level progression, increased multipliers, and extra spins
• Golden Reveal respins featuring cash prizes, collect symbols, and multipliers
• Mystery Reveal feature unveils matching symbols or Wilds, or triggers Golden Reveal respins
• Accelerated gameplay with Super Turbo Spins mode

Step into the wildly eccentric laboratory of a scientist in PopiPlay’s Mad Labs – a scientist obsessed with the idea of ​​striking it rich thanks to his collection of bizarre inventions.

Welcome to the mad laboratory of a scientist obsessed with getting rich through his eccentric inventions. In this 5×6, 50-payline slot, a lab teeming with experiments awaits: every spin could result in either a brilliant discovery or a colossal catastrophe.
Free spins, mystery symbols, respins, and a host of unpredictable features keep the action fast-paced and the excitement high. And for those ready to aim big, there’s a gamble feature – a chance to put the mad scientist’s latest theories to the ultimate test.

Bonus Buy

Players can purchase direct access to bonus games by paying a fixed amount based on the current bet. If the bet is increased, the cost of the bonus purchase also rises automatically. Four bonus purchase options are available:

1. Free Spins (Low Level) – 7, 8, or 9 free spins at Level 0.
2. Free Spins (Medium Level) – 7, 8, or 9 free spins at Level 2.
3. Free Spins (High Level) – 8, 9, or 10 free spins at Level 4.
4. Random Free Spins – a random selection of one of the three previous options.

Once purchased, the bonus game begins on the next spin. The bonus buy button will be inactive while the selected bonus game is in progress.

Max Win

The overall theoretical Return to Player (RTP) is 97.12%.

Fire up the machinery in Mad Labs, immerse yourself in the madness, and compete for a win of up to 30,000x your bet – just try not to blow up the entire planet in the process!

Game Rules

• Wild symbol

Substitutes for all symbols except the Mystery Reveal symbol, Scatter symbol, Gamble Scatter symbol, and symbols available only during the Golden Reveal feature.

• Scatter symbol

Appears in the base game, the Golden Reveal feature, and Free Spins mode. In the base game, it can land only on reels 2, 3, and 4. Landing two Scatter symbols in the base game creates a chance for a Gamble Scatter symbol to appear. During the Golden Reveal feature, the Scatter symbol can appear in any position active within that feature.

Gamble Scatter

It appears on reels 2, 3, and 4 during the base game and the Golden Reveal feature. A maximum of 3 Scatter and Gamble Scatter symbols (in any combination) can land simultaneously—both in the base game and during the Golden Reveal feature.
In the base game, the Gamble Scatter symbol can land as the third symbol if 2 Scatter symbols are already present on the reels.
During the Golden Reveal feature, the Gamble Scatter symbol can appear in any active position.
When it lands, the Gamble Scatter symbol either reveals an empty space (yielding no win) or transforms into one of the 3 symbols that determine the number of free spins and the starting level:

Purple Symbol: awards 4 – 9 Free Spins at Level 0.
Red Symbol: awards 7 – 9 Free Spins at Level 2.
Gold Symbol: awards 8 – 10 Free Spins at Level 4.

• Bonus Spin symbol

Appears only during the Golden Reveal feature, which is triggered during Free Spins. When it lands, this symbol awards additional free spins equal to the value displayed on it.

• Mystery Reveal symbol

Lands in any position on the reels during both the base game and Free Spins. Once the reels stop, all Mystery Reveal symbols open to transform into a regular paying symbol, a Wild symbol, or a Golden Reveal symbol. All Mystery Reveal symbols on the reels simultaneously transform into the same randomly selected symbol.

• Coin symbols

Appear only during the Golden Reveal feature and act as instant-win symbols that can land during the respins round. There are 4 types of coins; depending on the type, each may display one of the following values:

Bright golden: 1000x, 2500x, 5000x
Dark golden: 100x, 250x, 500x
Silver: 10x, 25x, 50x
Bronze: 1x, 2x, 5x

• Collector symbol

Appears only during the Golden Reveal feature. When it lands, this symbol collects the values ​​of all Coin and Collector symbols on the game board. All collected Coin symbols are then removed, and a respin occurs in the vacated positions with the same prizes as in the main feature. The Collector symbol remains in place.

• Multiplier symbol

Appears only during the Golden Reveal feature. When it lands, it multiplies the values ​​of all Coin and Collector symbols on the reels by the value shown on the symbol. The Multiplier symbol is then removed, and a respin occurs in the vacated position with the same prizes. Possible multiplier values: 2x, 3x, 5x, and 10x.

• Golden Reveal symbol

Cannot land independently; it appears only when revealed by a Mystery Reveal symbol. Landing at least one Golden Reveal symbol triggers the Golden Reveal feature.

Golden Reveal Feature

This respin round is triggered whenever at least one “Mystery Reveal” symbol yields a “Golden Reveal” symbol. A single respin is awarded for the presence of at least one “Golden Reveal” symbol. During the base game, “Coin,” “Collector,” “Multiplier,” “Scatter,” and “Gamble Scatter” symbols can land while this feature is active. When triggered during Free Spins, “Coin,” “Collector,” “Multiplier,” “Scatter,” and “Bonus Spins” symbols can land.

Free Spins

These are awarded when the Scatter symbol lands, triggering the Gamble feature. The free spins do not start automatically. You can either use the awarded spins in the Gamble feature (with a chance to improve the reward or lose it entirely) or skip this stage and proceed directly to the free spins game. If the free spins are lost during the Gamble feature, the round ends, and the player returns to the base game without receiving any free spins.
The free spins feature comprises levels 0 through 4 and can begin at level 0, 2, or 4. Each level offers the following benefits:

Level 0 – no Low symbols are excluded from Free Spins; the multiplier for the Golden Reveal Feature is 1x the bet.
Level 1 – L4 symbol is excluded from Free Spins; the multiplier for the Golden Reveal Feature is 2x the bet.
Level 2 – L4 and L3 symbols are excluded from Free Spins; the multiplier for the Golden Reveal Feature is 3x the bet.
Level 3 – L4, L3, and L2 symbols are excluded from Free Spins; the multiplier for the Golden Reveal Feature is 5x the bet.
Level 4 – all Low symbols are excluded from Free Spins; the multiplier for the Golden Reveal Feature is 10x the bet.

Levels are progressed by collecting Scatter symbols and bonus spins. Each level requires 4 of the corresponding symbols. Scatter symbols are not available on Level 4, and bonus spins do not count towards progress once Level 4 is reached.
Reaching a new level awards additional free spins:

Level 1: 4 additional Free Spins.
Level 2: 3 additional Free Spins.
Level 3: 3 additional Free Spins.
Level 4: 2 additional Free Spins.

During the Golden Reveal feature, triggered in Free Spins mode, Bonus Spins symbols with values ​​of 1, 2, or 3 may land; these award the corresponding number of additional free spins and contribute to progressing along the level meter.

Gamble Feature

When free spins are awarded via the Gamble Scatter symbol or purchased through the Bonus Buy feature, they begin at either Level 0 or Level 2. You can choose to keep the awarded free spins or gamble them for a chance to advance to a higher level. If you choose to keep the reward, the free spins will start with the current number of spins and level. The gamble feature offers a chance to upgrade the reward but carries the risk of completely losing the awarded free spins.

Pros & Cons