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! That’s right, online casino game developer Shady Lady has unveiled another hit slot that players can’t stop talking about, and we’re here to break down why. But before you dive in, be sure to test a few spins on the demo above—there’s no better way to experience everything this game has to offer than by playing it firsthand.

Game Overview

Set in a mysterious government lab, likely hidden in a deep, dark basement, Oops is a 6-reel slot with 4 rows per reel. At its core, this game tells the story of how experiments can go terribly wrong when left in the hands of careless individuals. And when things inevitably spiral out of control, it shows how chaos can escalate quickly when those in charge are people who really shouldn’t be in charge of anything at all.

Paying Symbols

With a total of 4,096 ways to win in the base game, expanding to an impressive 262,144 ways to win during the bonus round, Oops is a thoroughly modern slot in this regard. The paying symbols on the reels include four questionable scientists and various accessories like a syringe, underwear (yes, underwear!), a sandwich, a glove, and even some footwear (pun intended)! Payouts range from 0.1x your bet for landing 3 of the lowest-paying symbols up to 3x your bet for landing 6 of the highest-paying symbols.

By the Numbers

Oops boasts a default RTP of 96.28%, which is quite impressive for a slot of this caliber. It’s a highly volatile game (rated 10 out of 10 by Shady Lady themselves) with a maximum win of a whopping 20,000x your bet. Bet sizes range from as little as 0.10 per spin up to 50.00 per spin, meaning you have a chance to win a significant amount regardless of your wager, thanks to that 20,000x max win.

Flu-Like Features

While playing Oops, you’ll encounter 3 flu-like features that can trigger randomly on any spin in the base game:

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

When any flu-like feature triggers, all mystery reveal symbols transform into the same paying symbol on the reels.

Free Spins Bonus Round

To trigger the free spins bonus round in Oops, land 3 or more rat symbols anywhere on the reels, activating the Pandemic free spins. During the bonus round, Virus symbols can appear, which have the ability to split or spread across multiple positions. When this happens, all Virus symbols transform into the same paying symbol. The extent of the split or spread depends on their mutation level (there are 5 mutation levels total). To increase the mutation level, collect 3 mutation symbols, which also awards 3 additional free spins.

The Store

As is standard for all Shady Lady slots, Oops includes a feature called “The Store,” allowing you to purchase various features for your enjoyment. First, you can buy bonus boosters for a higher chance of triggering the bonus round, or jump straight into the bonus round 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 are the highlight reels, which let you buy a batch of spins all at once, keeping the 3 highest-paying results from all spins. For 75x your bet, you keep the top 3 results from 100 spins. For 190x your bet, keep the top 3 from 300 spins. And for 292x your bet, keep the top 3 from 500 spins.

Finally, there are loot boxes, offering a chance to trigger 1 of 9 enhanced bonuses, ranging from bronze to silver to gold. Even if you don’t hit the jackpot, the average enhanced bonus outperforms the average regular bonus, making it a win-win situation.

Before You Go

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

Although Oops is only the third slot from Shady Lady, it’s clear they’re committed to doing things differently than other providers, and that deserves applause. With so many casino games to choose from today, it’s refreshing to see a developer putting players first by creating games that are both fun to play and potentially very lucrative. That’s exactly what Oops is about: tons of fun with the chance for impressive wins. If you haven’t already, be sure to try the demo at the top of this page to see for yourself what the buzz is all about.

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Garik Gambling Expert
I write about casino reviews, online slots, and free spins. I cover free casino games and online casinos in the United Kingdom.