Oops Demo
Oops Slot Review
Deep in the bowels of a giant government facility, a team of inept scientists push through daily experiments they barely understand in Shady Lady’s latest release, Oops!
Coffee spillages, crossed wires, and biohazard signs are generally ignored in this facility, and it’s only a matter of time before something disastrous happens. That ‘something’ comes in the form of a deadly green slime.
The team have no clue what it does, but its Flu-like symptoms keep flagging up. Things go from bad to worse as a group of lab rats escape, setting off a chain of events that spiral into a full-blown global panic.
Oops marks the third release for upcoming software developer, Shady Lady – a provider with fresh and innovative ideas up its sleeve, as witnessed in Devil’s Finger and Brainwashed. Can we save the world from imminent threat? Let’s play on and find out!

Base Game & Features
Oops is a highly volatile 6-reel, 4-row Video Slot with 4,096 starting ways to win, which climbs to an impressive 262,144 in the Bonus Game. Players can choose from a variation of bet sizes between £.€0.10 and £.€50 per spin. Other attributes include an overall RTP of 96.28% and a generous max win cap of 20,000x your bet.
Wins are calculated when 3-6 matching symbols land from left to right, starting from reel 1. Four characters make up the highest-paying symbols, awarding payouts between 0.3x and 3x your bet. Other symbols include needles, underwear, sandwiches, gloves, and a foot, with payouts between 0.1x and 1x your bet.
Flu-Like Features
In the base game, 1 of 3 Flu-Like Features can trigger at random:
- Fever: A random number of columns are filled with slime Mystery symbols.
- Cough: A random number of reel positions are covered in mucus Mystery symbols.
- Congestion: A cluster of gooey Mystery symbols cover part of the reel set.
After a feature occurs, all Mystery symbols generated will reveal the same High or Low-paying symbol.
Bonus Buy
- Bonus Boost: Increases your chances of triggering Pandemic Free Spins (1.5x your bet)
- Big Bonus Boost: Enhances your chances of triggering Pandemic Free Spins significantly (5x your bet)
- Pandemic Free Spins: Instantly triggers the Free Spins mode (89x your bet)
- Highlight Reels: Purchase 100, 300, and 500 spins for 75x, 190x, and 292x your bet respectively
- Loot Boxes: Awards a random prize from 9 Enhanced Bonuses in tiers Bronze, Silver, and Gold. Rare, Epic and Legendary Loot Boxes can be purchased for 188x, 347x, and 574x your bet respectively
Pandemic Free Spins
Landing 3 or more Scatters in the base game triggers Pandemic Free Spins, awarding 6 Free Spins. For each additional Scatter after the 3rd, a further +1 Free Spin is awarded.
In Free Spins, special Virus symbols can appear, either Spreading or Splitting. How much they split or spread depends on their Mutation Level. After spreading, all Virus symbols transform into the same High or Low-paying symbol. There are 5 Mutation Levels available, which upgrade by collecting 3 Mutation symbols. After upgrading, a further +3 Free Spins are awarded.

Our Verdict
In a short space of time, Shady Lady has captured the hearts of many with the unique features, themes, and high-end graphics they portray in each of their releases.
Oops is the third instalment from a gifted bunch of individuals, after Devil’s Finger and Brainwashed, which places us in the middle of yet another pandemic. This time, however, rats and a toxic green slime are behind the outbreak and we need to find a way to contain it fast. Similar to Nolimit City’s style, each Shady Lady release comes with an element of humour, as well as high-performing features and functions you don’t often see from new providers until much later.
In the base game, you’re comforted by 3 Flu-Like Features, each spamming Mystery Symbols across the reel set in multiple ways. However, in Free Spins, you’re met with Spreading and Splitting virus symbols which enhance the number of ways to win to a staggering 262,144 ways. Shady Lady accommodates individual functions in both the base game and free spins mode in various ways, making this game particularly unique to their growing portfolio.
*The third release from Shady Lady is available to play at Best Slot Sites from the 9th May 2025.