MOUSE: P.I. For Hire Review: A Boomer Shooter Noir

MOUSE: P.I. For Hire review context worth stating up front: this could have been a one-joke game, a Cuphead-style art style bolted onto a generic shooter to sell the screenshots. It isn't. Fumi Games built an actual noir detective plot underneath the rubber-hose visuals, and the combination is why it's still finding new players months after launch.

TL;DR: MOUSE: P.I. For Hire is a single-player boomer shooter with hand-drawn, black-and-white 1930s cartoon visuals, a real noir mystery plot, and a jazz score. Very Positive on Steam at 93.9 percent across more than 15,000 reviews. You play detective Jack Pepper investigating a missing persons case that spirals into corruption, kidnapping, and murder across the city of Mouseburg. $29.99, PC only, no co-op.

Is MOUSE: P.I. For Hire worth playing? (quick answer)

Yes. Live Steam data confirms Very Positive at 93.9 percent across more than 15,000 reviews, a number that's kept climbing well past the April 16, 2026 launch window rather than settling immediately. That sustained reception matters more than a strong launch-week score would, since it means the game is holding up for people playing it now, not just early hype.

Key Takeaways

• Developer: Fumi Games, published by PlaySide.
• Price: $29.99 on Steam, PC only.
• Reception: Very Positive, 93.9% across 15,498 total reviews (14,548 positive / 950 negative) as of this review.
• Genre: first-person boomer shooter, single-player only, no co-op or multiplayer.
• Setting: 1930s noir detective story, hand-drawn black-and-white rubber-hose art, protagonist Jack Pepper.
• Released: April 16, 2026.

What MOUSE: P.I. For Hire actually is

Jack Pepper is a war-hero-turned-private-investigator working the city of Mouseburg, and the game opens on what looks like a routine missing persons case. It doesn't stay routine. Corruption, kidnapping, and murder all surface as the investigation deepens, and the noir framing isn't cosmetic dressing on top of a generic shooter campaign, it's the actual throughline holding the level-to-level combat together.

The visual style is the thing everyone notices first, and for good reason: it's hand-drawn, frame by frame, in black and white, deliberately evoking 1930s rubber-hose cartoons rather than just referencing them. An original big band jazz score plays underneath it. Neither element feels like it's coasting on novelty by the time you're several hours in, which is the real test for a game built around a strong initial visual hook.

Boss encounters lean into the cartoon-logic weirdness the visual style promises, robotic enemies, electrical effects, and factory-floor set pieces well beyond the noir detective office framing.

Gameplay: a real arsenal, not a reskinned default loadout

This is explicitly a boomer shooter, meaning fast movement, direct combat, and a growing weapon roster rather than cover-based tactical pacing. The store page describes "crackling machine guns to explosive firepower," classic and "creatively twisted" firearms, and power-ups described with a cartoon logic ("spinach-loaded punch") that matches the visual tone instead of feeling bolted on.

Environments vary meaningfully across the campaign: dark city streets, film studios, an opera house, and a swamp all appear as distinct settings rather than reskinned versions of the same level geometry. Boss battles are a stated highlight, and the screenshots back that up: enemies get genuinely strange, robotic mouse constructs with electrical effects among them, not just bigger versions of standard enemies.

The Mouseburg overworld map ties the level structure back to the detective framing directly, chained buildings mark districts you haven't unlocked yet, so progressing the case is what opens up new places to investigate, not a separate level-select menu bolted on top.

GODEEPER: If retro-styled shooters are your thing, our indie co-op picks list covers a different corner of that space for when you want a second player along instead of going it alone. Best Indie Co-op Games Steam Summer Sale 2026: 6 Picks →

Where it's limited

No co-op or multiplayer exists here, full stop, so anyone hoping to bring a friend into Mouseburg is out of luck. That's a deliberate scope choice, not a missing feature, but it's worth knowing going in if multiplayer is part of what you want from a boomer shooter right now.

The genre itself is crowded. Retro-styled, arena-focused FPS games have had a real resurgence (our look at PAPERHEAD's cardboard boomer shooter demo is another recent example of the same wave), and MOUSE: P.I. For Hire has to earn its spot in that lane on more than its art style alone. Based on the sustained review numbers months after launch, it's doing that, but it's worth going in aware that the visual hook is what gets you to try it, and the noir plot and combat variety are what have to actually hold up after that.

There's also no confirmed New Game Plus or post-campaign content as of this review. If you're looking for a long-tail live-service-style commitment, this isn't built for that; it's a complete, contained campaign experience. Given the $29.99 price sits at the higher end for a single-player, no-replay-mode indie shooter, that's a real factor to weigh if endless replayability is what you're after, rather than a strong story-driven playthrough you finish once.

Tips

Don't skip the investigation beats expecting pure arcade shooting

The noir plot is doing real work here. Playing purely for the gunplay and rushing past the detective-story elements undersells what makes this game hold together past its opening hours.

Budget more than a weekend if you want the full story

With no official completion time published, and community Let's Play coverage running into double-digit video parts, this reads as a meaningfully long campaign, not a quick arcade run. Plan accordingly if you're going in for the story.

Adjust difficulty early rather than fighting a mismatched setting

The store page confirms adjustable difficulty and options like playable-without-timed-input, so if a boss fight feels tuned wrong for you, that's a settings problem to fix immediately rather than something to push through on principle.

Frequently Asked Questions

What is MOUSE: P.I. For Hire? A first-person boomer shooter from Fumi Games with hand-drawn, black-and-white 1930s rubber-hose visuals. You play Jack Pepper, a war-hero-turned-detective investigating a missing persons case that unravels into a conspiracy involving corruption, kidnapping, and murder in the city of Mouseburg.

Is MOUSE: P.I. For Hire worth playing? Yes, based on live Steam data: Very Positive at 93.9 percent across more than 15,000 reviews, sustained months after its April 16, 2026 launch. The noir detective plot and varied weapon arsenal give it more staying power than a pure visual-gimmick shooter would have.

Does MOUSE: P.I. For Hire have multiplayer or co-op? No. It's confirmed single-player only on its Steam store page. If co-op is what you're after in this genre, look elsewhere.

What platforms is MOUSE: P.I. For Hire on? PC via Steam, priced at $29.99. This review covers the PC version.

How long does MOUSE: P.I. For Hire take to beat? Fumi Games hasn't published an official completion time, and no confirmed third-party estimate exists as of this review. Community Let's Play series running into double-digit parts suggest a full campaign runs a meaningful number of hours, not a short arcade experience.

Related Reading

• Best Indie Co-op Games Steam Summer Sale 2026: 6 Picks: for when you want a co-op alternative in a similar indie price range.

References

• MOUSE: P.I. For Hire on Steam: official store page, price, and live review data
• MOUSE: P.I. For Hire Official Launch Trailer: official gameplay and story reveal