Game Review: Unusual Suspects (Northern Lights)

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title page of the online slot game, Unusual Suspects by Northern Lights
BetMGM Oct 24, 2023, 7:46 AM

Microgaming slot games combine classic reel-based gameplay with the latest features of online gambling, giving players the freedom to enjoy immersive games that are unmatched in terms of fun factor, compelling odds, and accessibility.

Unusual Suspects is a game where the perks of online slots shine in a compact and captivating format. Developed by Northern Lights Gaming and powered by Microgaming slots technology, it’s one of the best slot games to play when you’re in the mood for the timeless theme of cops and robbers, with upgrades for a modern audience that include a slick and seamless user interface, high-quality animations, and multiplatform support.

Game Overview

Unusual Suspects is a 5×4 slot game with 20 pay lines and medium volatility. With free spins, bonus rounds, and a top prize of 12,500x your bet, the game offers ample incentives in the way of lucky wins and big prizes. The highest return to player (RTP) is 96.05%, which is fairly decent when you factor in the addition of wild symbols, scatter respins, frame multipliers, and a unique bonus round.

Most online slot reviews will tell you that the RTP of Unusual Suspects is a bit low compared to other Microgaming slots, but the game manages to offset the minor RTP deficit with added features that enhance the gameplay. For example, there’s a cumulative free spin boost that carries over from spin to spin, and you can buy free spins that automatically set the minimum win multiplier to 38.6x the bet. 

When you play slots online, RTP is merely one of several gameplay mechanics to consider. Unusual Suspects adds plenty of value for players by diversifying betting options and ways to win, ultimately leading to a unique online casino experience.

How To Play

Casino games on online platforms are easy to pick up and play, whether you’re a first-timer or a seasoned gambler. In Microgaming slot games, the interface is designed to be as user-friendly as possible; buttons and symbols are clear and easy to read, and progression requires very little input from the player.

To begin a game of Unusual Suspects, set the size of the bet for however many spins you desire. Then, all you have to do is spin the reels and await the outcome. If you’re lucky enough to match at least three symbols in a row, you win. Wilds and scatters improve your win multiplier substantially, while the bonus round grants free spins and additional rewards.


Unusual Suspects is no slouch in the graphics department. Animations are highly detailed and smooth, with no frame rate issues or graphical glitches to speak of. Every symbol is vibrant and eye-catching. The backgrounds fit the theme perfectly — a modern cityscape with a seedy underbelly and the cluttered back wall of a detective’s office. 

There are no background animations distracting you from the action on the reels. The color palette highlights anything players should pay attention to, from embossed sticky frames to high-pay symbols. Overall, the game offers a carefully considered balance of great attention to detail and cartoon-like aesthetics, allowing you to focus solely on the fun of online gambling.


Similarly to other popular jackpot slots, Unusual Suspects ups the ante on every spin with a variety of extra features. Wild and scatter symbols are major elements of gameplay. They can replace any other pay symbols and increase your multiplier considerably, depending on how many of them you can land per spin.

A line of five wilds pays 10x the bet. Each wild symbol leaves a frame behind for the next spin, adding up to 5x the bet on a single frame. If the Golden Wild symbol lands, it spawns multiple regular wilds on the reels, further enhancing your potential payout. 

Scatter symbols are tied to the free spins boost. For every two scatters on the grid at the same time, you get a point on the boost meter. Once you acquire 50 points in total, you’re rewarded with a free spins bonus trail called Big Boss Free Spins. Additionally, if you land two or more scatters on the top three rows, any rows without scatters will respin, potentially leading to more scatters and wilds.

Bonuses and Jackpots

The slots bonus of Unusual Suspects is triggered by the detective symbol. When the detective graces the screen, all sticky frames instantly receive wilds. Sticky frames are cleared at the end of the bonus round, but they remain if you’re already on a free spin.

The free spins slots bonus is divided into four Big Boss levels. Each level grants five extra spins and an increasing multiplier, with the highest being a 10x multiplier at “Big Boss 4.” The awards for matching scatters and detectives are granted as soon as you reach the Big Boss level, increasing your chances of walking away with multiple rewards.

Similar Games

If you play slots online with a leading games provider, Unusual Suspects might be a game with an all-too-familiar theme. If you’re in the mood for a different look and feel, there are countless options to choose from. 

Games like Castle of Terror and Break Bones give off more of a creepy vibe. Mystery Express fills the niche of thrilling intrigue nicely. For a pirate theme, you could try ARRR! 10K Ways, Pirate Pays, or Cash Falls Pirate’s Cove. When you play casino games online, you can find all kinds of themes and unique mechanics for slots, leaving it up to you to decide what kind of gaming experience you would prefer.

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Our BetMGM editors and authors are casino experts with a wealth of knowledge of the online casino industry at all levels. Their coverage includes company news, game reviews, how-to instructional articles, strategy guides, and editorials showcasing BetMGM’s superior product and game library.

Our BetMGM editors and authors are casino experts with a wealth of knowledge of the online casino industry at all levels. Their coverage includes company news, game reviews, how-to instructional articles, strategy guides, and editorials showcasing BetMGM’s superior product and game library.