| Setting | Description | Default | | :--- | :--- | :--- | | bUseMouseTurning | Enables mouse turning functionality | true | | bUseRawMouseInput | Enables raw mouse input for precise aiming | true | | bUseSprintToggle | Toggles sprint instead of held button | false | | bSmoothAnalogTurning | Enables smooth analog stick turning | true | | fControllerSensitivity | Controller sensitivity multiplier | 1.0 |

If you already own the 2007 version, the situation is stark: the game has no official support for a mouse. None. Zero. Zilch. Fortunately, the modding community created by nipkownix, a comprehensive fix that adds and greatly improves mouse support.

Look for InvertY if you prefer inverted vertical aiming, and change it to 1 (On) or 0 (Off). Save the document and close Notepad.

: It supports a smooth 60 frames per second, which makes mouse aiming feel significantly more responsive than older 30 FPS capped versions Enhancing the Experience with Mods

Outside, the city exhaled. Inside, Juno’s fingers retained the memory of tiny movements, the inclination to return. The game on her screen now read "Exit to Desktop," a phrase that felt less like an ending and more like a promise: she could step away, but she knew how to come back—one precise click at a time.

Always adjust your mouse DPI to around 400 or 800 before launching older games, as older engine fixes scale aggressively with high DPI settings.

This document explains how mouse input works in Resident Evil 4 (RE4) on PC, common issues, configuration options, community fixes/mods, and practical tips to get smooth, responsive aiming and camera control. Assumptions: you have RE4 installed on Windows PC (Steam, Epic, or other digital copy). If you need platform-specific steps (e.g., Xbox Cloud PC or Steam Deck) say so.