Act 4 is now available for everyone to play, as an addon to the previous release so that Acts 1 through 4 can be played in the same mod, and you won't need to reset your save file for it.
Like the other three acts, Act 4 has been accurately recreated using the Generations engine, complete with HD textures and varying ways to play with both Classic and Modern Sonic, with Modern boosting his way through with the Orange Rocket wisp and Classic Spin Dashing along with the Pink Spikes wisp.
To download this mod make sure you have already downloaded and installed the previous release: Moddb.com Once that is done download the file for this update and follow the instructions in the readme: Moddb.com
WHAT'S NEW IN V0.6
- Act 4 playable as both Classic and Modern Sonic.
- Lighting improved in all other acts and HUB world.
- Some minor bugs fixed.