Get the official Windows release from Game Jolt.
Download the official Sonic Megamix Mania mod files from the official site . sonic megamix mania download top android
To use the decompilation or any modded version legally, you must own the game on Steam to provide the necessary Data.rsdk file. Get the official Windows release from Game Jolt
A legitimate copy of the from your Steam installation. sonic megamix mania download top android
The official Sonic Megamix Mania mod is designed for the PC version of Sonic Mania Plus and requires the Steam versions of Sonic Mania and the Plus DLC. However, the Android community has found a way to run the game on mobile devices through the RSDKv5/Sonic Mania Decompilation project.