If you are looking for an Android-compatible version of the Sonic 2 HD project or similar high-definition fan remakes, several developers have posted their work:
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Unlike the original 16-bit sprites, every frame of animation for Sonic, Tails, and the environment is redesigned in high-definition 2D art, intended to look like a modern animated feature rather than a retro game. Key Feature Highlights sonic 2 hd download new game jolt android
Do not use Google Play – it is not there. Open Chrome or your preferred browser and go to: gamejolt.com/games/sonic2hd/ (search for “Sonic 2 HD Community Edition” if the direct link changes). If you are looking for an Android-compatible version