Players are no longer restricted to just the standard trio of Sonic, Tails, and Knuckles. The updated pack integrates:

The game adopts the polished physics of Sonic 2 and Sonic 3 & Knuckles .

Ensure you have enabled "Install from Unknown Sources" in your Android settings to complete the APK installation. Comparison: S1 Forever vs. Sonic Origins Sonic 1 Forever (Expansion) Sonic Origins Playable Characters Sonic, Tails, Knuckles, Amy, Metal, Mighty, Ray, Fang, etc. Sonic, Tails, Knuckles, Amy Physics Native Decompilation (Pixel Perfect) Retro Engine (Mostly Accurate) Customization Extensive mod support (SpongeBob, holiday themes, etc.) Limited to official DLC Save System Unlimited save slots Limited slots Sonic 1 Forever | Team Forever - Wix.com

: Access new narrative bridge levels and bonus modes that expand upon the ending of the original game.