The crucial step involves purchasing Sonic Mania on PC. Once installed on your computer, you navigate to the game's local installation directory. Inside, you will find the Data.rsdk file. You must copy this exact file and place it directly into the Sonic Mania homebrew folder on your SD card alongside the Wii executable files.
Copy your legitimate Data.rsdk file from your PC install to the RSDK/v5/ folder on the SD card. Launch via the Wii U Homebrew Launcher. Official Platforms sonic mania wii rom link
Your console must be able to run custom apps via the Homebrew Channel. The crucial step involves purchasing Sonic Mania on PC
Open your licensed PC installation folder via Steam. Locate the Data.rsdk file. Copy this file and paste it directly into the [SD Card]/RSDK/v5/ directory. You must copy this exact file and place
: Visit the official GitHub repository for the RSDKv5 decompilation or dedicated Wii homebrew forums (such as GBATemp). Download the latest Wii build of the Sonic Mania decompilation.