🎮 Overcooked 2 — DualShock 4 Bluetooth Fix

A BepInEx-based mod that fixes DualShock 4 Bluetooth controller detection in Overcooked 2 on macOS. ReadMe may seem like an "AI Slop" since i asked chatGPT to write it but code has been tested and run by real person

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✅ What This Fixes

By default, Overcooked 2 does not recognize DualShock 4 controllers over Bluetooth, due to how the game’s input system (using InControl) identifies controllers only by Bluetooth device name — not by vendor or product ID.

This mod forces the game to recognize DualShock controllers even over Bluetooth if their name contains "DUALSHOCK".

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⚠️ Important: Controller Name Must Include "DUALSHOCK"

To ensure detection:

1. Open System Preferences → Bluetooth

2. Rename your controller to include DUALSHOCK (case-insensitive)

   • Example: DUALSHOCK Black

If your controller name doesn’t include this keyword, the game will treat it as an unknown device.

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🛠 Installation

1. Install the Mod

cd /Users/Shared/
curl -LO https://github.com/AlvinHV/Overcooked2DS4BT/releases/download/v1.0.0/Overcooked2Mod.zip
unzip Overcooked2Mod.zip
rm Overcooked2Mod.zip

2. Set Steam Launch Options

In Steam:

1. Right-click Overcooked 2 → Properties
2. In Launch Options, enter:

/Users/Shared/Overcooked2Mod/run_bepinex.sh %command%

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🐞 Known Issues

• D-Pad is not working properly.

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🔍 Development Notes

Originally suspected Unity’s IOKit-based input system was the issue. After reverse engineering (including hooking C++ functions and IOKit exports), I confirmed that:

• Unity does receive controller input properly via IOHIDDevice.
• The game uses the InControl C# library to manage controllers.
• InControl fails to recognize controllers if their Bluetooth name doesn't match any predefined strings or regexes.

This mod patches InControl’s logic to ensure the controller is not "unknown".