MOUSE: P.I. For Hire is a single-player first-person shooter that blends fast-paced combat with investigative elements in a stylized 1930s cartoon world populated by anthropomorphic rodents.
Gameplay
The core loop centers on controlling private investigator Jack Pepper through a series of noir-tinged cases in the city of Mouseburg. Players navigate detailed environments using movement tools such as wall-running, grappling hooks, and double jumps to reach new areas and maintain momentum during fights. Combat emphasizes constant repositioning against groups of enemies, with an arsenal of over ten weapons that feature creative, cartoon-inspired twists alongside standard firearms. Consumable power-ups provide temporary boosts to turn the tide in intense encounters. Separate investigative segments require locating clues and solving puzzles to advance the story, while Metroidvania-style progression unlocks additional traversal abilities over time. Boss encounters stand out for their scale and require adapting movement and weapon choices to specific patterns.
Game Modes
The game offers a single-player campaign structured around more than twenty distinct levels. Each level combines arena-style shootouts with exploration and detective work as the central missing persons case expands into broader layers of crime and corruption. Progression flows linearly through the story while incorporating optional collectibles and ability upgrades that encourage revisiting areas with new tools. No separate multiplayer or additional modes exist beyond this focused campaign experience.
Story and Setting
Set in an alternate 1930s populated by mice, rats, and shrews, the narrative follows Jack Pepper, a former war hero turned detective, as he tackles escalating cases filled with crooked officials, rival gangs, and hidden conspiracies. The black-and-white rubber hose animation style evokes classic cartoons, contrasting with fully realized three-dimensional environments. An original jazz soundtrack featuring big band arrangements underscores both tense shootouts and quieter investigation moments.
Is It Worth Playing?
Player reception has been strongly positive since the April 2026 release, with Steam reviews sitting at Very Positive overall. The distinctive visual approach and responsive combat draw consistent praise, while the integration of shooting and light puzzle-solving appeals to those who enjoy boomer shooter mechanics paired with a detective theme. Recent patches have addressed quality-of-life issues and stability. It suits players seeking a self-contained single-player experience with strong emphasis on movement and style over competitive multiplayer. Those who appreciate retro-inspired first-person shooters with narrative framing will likely find the campaign engaging from start to finish.
