Oops

Play Oops Demo

Game Information

Max Bet50
Max Exposure20000
Max Win Per Spin20000
Min Bet0.1
PaylinesFixed
Rating3.6
Reels6
Release DateMay 9, 2025
Rtp96.28
TypeSlots
VolatilityHigh
ProviderShady Lady
ThemesHalloween, Adventure, Science

Oops Overview

Oops, they’ve gone and done it again! Yes, online casino game developer Shady Lady has rolled out another buzzworthy slot that players can’t stop talking about, and we’re here to break down why. That said, the best way to get a real feel for it is to spin the demo above—nothing beats firsthand gameplay to see what this title brings to the table.

Game Introduction

Set inside a mysterious government lab—probably tucked away in some dark basement—Oops is a 6-reel slot with 4 rows per reel. At its heart, this game tells the tale of what happens when lab experiments are left in the hands of the careless. And when things inevitably go sideways, it also shows how quickly chaos can take over when the folks in charge really shouldn’t be running anything at all.

Paying Symbols

With 4,096 ways to win in the base game, which can jump to a massive 262,144 ways to win during the bonus round, Oops is definitely a modern slot in that sense. The paying symbols on the reels feature four questionable scientists and a mix of odd accessories: a syringe, some underwear (yes, underwear!), a sandwich, a glove, and even a pair of shoes (pun fully intended). Payouts range from 0.1x your bet for landing three of the lowest-paying symbols up to 3x your bet for six of the highest-paying ones.

By The Numbers

Oops comes with a default RTP of 96.28%, which is solid for a slot of this type. It’s a high-volatility game (rated 10 out of 10 by Shady Lady) with a max win of 20,000x your bet. Bet sizes start as low as 0.10 per spin and go up to 50.00 per spin, meaning you’ve got a shot at a big payout no matter your wager, thanks to that 20,000x max win.

Flu-like Features

While spinning Oops, you’ll find three flu-like features that can trigger randomly on any spin in the base game:

  • Fever: A random number of reels get filled with mystery reveal symbols.
  • Cough: A random number of spots on the grid get mystery reveal symbols.
  • Congestion: A cluster of mystery reveal symbols is added to the grid.

When any of these features kick in, all mystery reveal symbols turn into the same paying symbol across the reels.

Free Spins Bonus Round

To unlock the free spins bonus round in Oops, you need to land three or more rat symbols anywhere on the reels, which triggers the Pandemic free spins. During this round, Virus symbols can appear and have the ability to split or spread across multiple positions. When that happens, all Virus symbols transform into the same paying symbol. How much they split or spread depends on their mutation level (there are five levels total). To boost the mutation level, collect three mutation symbols, which also awards 3 extra free spins.

The Store

As is standard for all Shady Lady slots, Oops includes “The Store,” letting you buy various features for your convenience. You can grab bonus boosters for a better chance at triggering the bonus round, or jump straight into it with a bonus buy. Costs are 1.5x bet for a bonus boost, 5x bet for a big bonus boost, or 89x bet for a bonus buy.

Next up are the highlight reels, which let you buy a batch of spins in one go and keep the three highest-paying results. For 75x your bet, you get the top three from 100 spins. For 190x your bet, it’s the top three from 300 spins. And for 292x your bet, you keep the best three from 500 spins.

Finally, there are loot boxes, giving you a shot at one of nine enhanced bonuses, ranging from bronze to silver to gold. Even if you don’t hit the jackpot, the average enhanced bonus beats the average regular bonus, so it’s a win-win either way.

Before You Go

If we had to sum up Oops in one word, it would be “quirky.” And that quirkiness starts before you even spin the reels—like the notecard in the background reading “your mom doesn’t work here…” and the “days since last incident” counter that ticks up with each spin.

Even though Oops is only the third slot from Shady Lady, it’s clear they’re taking a different path than other providers, and that deserves applause. With so many casino games out there, it’s refreshing to see a developer put players first by crafting titles that are both fun to play and potentially very rewarding. That’s exactly what Oops is about: loads of fun with the chance to land some impressive wins. If you haven’t already, give the demo a spin at the top of this page to see for yourself.

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Garik Gambling Expert
I review online casinos and free slots in the UK. I focus on free spins and popular slot games. Explore my casino reviews at 29bet-login.com.