The Oops slot plunges you into the sneaky corridors of a dysfunctional research laboratory where a “harmless” experiment has gone very, very wrong – think spilled beakers, lab rats on the run, and a satirical take on what happens when control is lost.

The visuals are playful yet chaotic: slimy mystery symbols, green goo splats, and a sign counting “Days Since Last Incident” all reinforce the theme of comical catastrophe.

Starting your session is simple, though your play style affects how the chaos unfolds:

• Preferred Spin Options: You can take things manually to watch each “virus spread” or “mucous mystery reveal” unfold, or engage autoplay to let the lab meltdown roll while you step away.

• Bet Options: The bet range is from 0.10 up to 50.00 coins per spin.  

• Turbo Mode: The “turbo spin” button when clicked upon activates fast play action for an enhanced and heightened playing session. 

The game uses a 6-reel x 4-row grid with 4,096 ways to win by default, and this can expand up to 262,144 ways to win during the bonus feature. The main version lists 96.28% RTP, with alternative variants at 94.13% and 92.01% depending on operator. Volatility is rated very high. The maximum possible payout is up to 20,000x your bet. 

• Low-value items including a boot, glove, bitten sandwich, underpants and syringe.

• High-value icons are caricatured scientists.

• Flu-like Base Game Modifiers: At random in the base game, one of three features may trigger before the spin resolves:
  
  • Fever: between 1 to 6 full columns are covered with slimy mystery reveal symbols.
    
  • Cough: 3 to 20 random positions are covered with mucus mystery reveal symbols. 
    
  • Congestion: A cluster of 4 to 16 positions is covered in gooey mystery reveal symbols.
    After the reveal, all those mystery symbols transform into the same regular symbol, boosting win chance. 

• Pandemic Free Spins Feature: Triggered by landing 3 or more Lab Rat Scatter symbols. The initial award is 6 free spins, plus one extra spin per additional scatter beyond three.
  During Free Spins:
  
  • Virus symbols may land; they either spread to adjacent positions or split into two on the same position. After their action, they transform into regular symbols. 
    
  • Mutation symbols can be collected: each time you collect 3 mutation symbols you level up (up to 5 levels) and receive +3 free spins. At higher levels the virus symbol actions increase (for example, more spread/split actions) improving win potential. 

• Feature Buy / Store Options: For jurisdictions where permitted, players have access to:
  
  • Bonus Boost (Cost 1.5x the bet) or Big Bonus Boost (Cost 5x the bet) to increase the odds of entering the Free Spins. 
    
  • Bonus Buy (Cost 89x the bet) to guarantee entry into Free Spins. 
    
  • Highlight Reels: Buy 100/300/500 spins and receive the 3 highest-winning results. Costs: 75x, 190x, 292x the bet, respectively. 
    
  • Loot Boxes: Pay 188x, 347x or 574x the bet for Rare, Epic or Legendary boxes that award enhanced bonus versions with higher potential.

I found the Oops slot to be an unexpectedly entertaining and mechanically rich slot that mixes darkly humorous theme with serious win potential. The base game modifiers keep each spin interesting, and the Free Spins feature with spreading/splitting virus mechanics adds genuine strategic depth and excitement.