Oops Slot (Shady Lady)

The Oops slot begins with 6 reels, 4 rows and 4,096 ways to win. To form a winning combination, you need 3 or more matching symbols appearing on consecutive reels, in any position, and starting from the leftmost reel. The more symbols, the bigger the payout with only the highest awarded.

Bets-wise, the minimum bet per spin is 10p with a maximum of up to £5 (in according with UK rules). There are 2 ways to change the bet: use the plus or minus buttons as well as pressing the actual Bet amount to see all available options.

In terms of returns, the Oops RTP rate is 96.28%: 62.49% is reserved for the base game and 33.79% for the bonus features. However, there are 94.13% and 92.01% alternative RTP settings (head to the Paytable to check the rate at your chosen site). As with most demo games at OLBG, the highest setting is used where possible.

Very high on the volatility front (10/10), Oops comes with a 29.1% hit frequency rate: you’ll average a winning combination every 3.43 spins. Triggering the Pandemic Free Spins feature will occur once every 255 spins, on average. Lastly, the max win is 20,000 times your total bet. With a max win probability of 1 in 23.8 million spins, the average win in the free spins is 86.39 x bet.

Shady Lady’s 3^rd release, the Oops slot takes you deep into the bowels of a massive government laboratory where well-meaning but utterly inept scientists conduct daily experiments. Spilled coffee, crossed wires and ignored biohazard signs lead to disaster.

With a suspicious green slime on the loose, a group of lab mice develop flu-like symptoms and manage to escape which, in turn, sets off a chain reaction that leads to a full-blown global pandemic. Loosely based on the pandemic from 2020, Shady Lady describes the situation as a “world where science fiction meets slapstick disaster”.

With the virus mutating, spreading and growing stronger by the hour, containment is out of the question. On the reels, you’ll come across medical gloves, half-eaten sandwiches, underpants and syringes. The high-paying symbols include 4 different characters with the best-paying awarding 3 times your total bet.

Oops has no wild symbols but does benefit from mystery reveal symbols. The other symbol of note is the Lab Rat Scatter which is key to triggering the Pandemic Free Spins feature: you’ll also encounter virus symbols in the free spins.

Oops Mobile

With Shady Lady being a new slot provider (founded in 2024), all slot games are created using HTML5 technology. This means Oops is available to play on mobile, tablet and desktop devices: including iOS and Android smartphones. The latter uses Portrait Mode which takes up more of your vertical screen for an optimal playing experience. Personally, a laptop or PC would be my recommendation for the full visual effect.

The Oops slot has 4 bonus features (excluding purchasable extras). In the base game, 1 of 3 random flu-like modifiers can infect the reels and reveal transforming mystery reveal symbols. With the Pandemic Free Spins feature, Virus symbols spread to more symbol positions or split for more Virus symbols and extra ways to win (up to 262,144). Collecting Mutation symbols moves you through the 5 levels where the Virus symbols are more potent as well as extra free spins awarded.

Flu-Like features

During base game spins, 1 of 3 flu-like features can activate randomly. Details are below:

• Fever feature: a random number of reels (1 to 6) are filled with slimy mystery reveal symbols
• Cough feature: between 3 and 20 random number of positions are covered in mucous mystery reveal symbols
• Congestion feature: a 4 to 16 cluster of gooey mystery reveal symbols covers part of the reels

After appearing on the reels, all mystery reveal symbols transform into the same paying symbol.

Pandemic Free Spins

The Pandemic Free Spins feature is triggered by landing 3 or more Lab Rab Scatter symbols: you’ll be awarded 6 free spins for 3 scatters plus 1 extra free spin for every additional scatter (i.e. 4 or 5 scatters will give you 7 or 8 free spins respectively).

During the feature, look out for Virus symbols appearing as they either spread or split:

• Spread: Virus symbols can spread in all directions but cannot spread in the direction where a Virus symbol is already present. Once a Virus spreads, virus symbols transform into a paying symbol.
• Split: Virus symbols can split to create 2 instances of the Virus in the current position. Also transforming into a random paying symbol, more symbols increase the number of ways to win (up to 262,144).

Now, how much Virus symbols split or spread depends on their mutation level. At level 1, a Virus symbol is will spread or split by 1 whilst 2 actions occur at level 2, etc.

With 5 mutation levels, you level up by collecting 3 Mutation symbols. Each level you reach rewards you with 3 extra free spins. The higher the level you reach, the more free spins you’ll play with and the more the Virus symbols spread or split. This can lead to 262,144 ways to win in the case of splitting Virus symbols.

Bonus Buy

Available to players located outside the UK, the Oops slot game has multiple Bonus Boost, Bonus Buy, Highlight Reels and Loot Box options:

• Bonus Boost: for 1.5 x bet, you boost your chances of triggering the Pandemic Free Spins feature. 
• Big Bonus Boost: for 5 x bet, your chances increase further.
• Bonus Buy: buy your way directly into the Pandemic Free Spins feature for 89 x bet.
• Highlight Reels: With 3 options, you buy the best 3 of 100, 300 or 500 spins for 75, 190 or 292 x bet respectively.
• Loot Boxes: With Rare, Epic and Legendary Loot Box options, you will be awarded 1 of 9 Enhanced Bonuses. There are Bronze, Silver and Gold Enhanced Bonuses which cost 188, 347 or 574 x bet respectively. There are 1, 2 or 3 star versions of each option with higher win potential the more stars.

Oops Slot

Rating: 4.5/5

Oops is Shady Lady's slapstick take on the pandemic and comes with random transforming symbols and a Pandemic Free Spins where Virus symbols spread and split for up to 262,144 ways to win, more potential Virus symbols, extra free spins and 20,000 x bet max wins.

Chris Taylor

The Oops slot is the third game from Shady Lady (following on from Devil’s Finger and Brainwashed). Their most volatile title to date, it has a completely different look to previous releases: it has a more slapstick approach rather than dark humour.

That was probably the right way for Shady Lady to play their take on the pandemic which is still fresh in our memories. It pokes fun at what can happen when inept people are in charge.

Onto the gameplay: there are 3 randomly-triggered flu-like extras in the base game which are triggered once every 23 spins on average. They all award mystery reveal symbols that transform into a randomly chosen paying symbol. It may be nothing unique but max wins in the base game can reach 12,288 times your total bet!

Then you have the Pandemic Free Spins feature where Virus symbols spread or split on the reels. Transforming into a paying symbol, Virus symbols splitting can lead to more symbols with up to 262,144 ways to win at its maximum. The more Mutation symbols you see, the higher the level you’ll reach meaning the Virus symbols are more potent as well as being awarded extra free spins.

With 20,000 times bet max wins up for grabs during the free spins, Oops is a cleverly executed slot game that dances around a sensitive subject matter with grace and purpose. Just hope you reach Defcon levels 3 or higher where the real big wins are most likely to land.

If you like slot games based on controversial topics, Nolimit City is the master with games based on serial killers, Karens, concentration camps, BDSM parties and much more. That slots that spring to mind include Kenneth Must Die, Serial and Blood Diamond. 

The Oops slot review was written by Chris Taylor from our OLBG Expert team who who written over 10,000 slot game reviews in an iGaming career spanning over 2 decades.

Chris Taylor

The king of slots

Chris Taylor is an industry veteran originally from Gibraltar. Having worked in the online gambling industry since 2004, Chris loves slots and has reviewed over 10,000 online slot games. Running a slots-focused website for 13 years, Chris is the go-to guy for everything slots-related.