A sonic hack based on Sonic 1 made by Ashuro Sonic & Ashuro was released during the Sonic Hacking Contest 2016, I presented the first version of this project: The 3.0 (which I later updated to Sonic Stuff Research Group as 3.1).I received a lot of good feedback and decided to continue this project, which seemed unfinished. I decided to recast 60% of the game, improve a lot of things, I fixed so many bugs, technical problems, unfinished plans.Story :After losing once again against Sonic, Tails and Knuckles on Angel Island, Dr. Eggman in a desperate attempt will use the residual energy of the Chaos Emeralds and damage the spatio-temporal balance of their dimension.Sonic's world will find itself on the same vibratory plane as its parallel universe, that of Ashuro the badger. But the universes are collapsing on themselves and Dr. Eggman risks destroying all the worlds they harbour.To prevent the destruction of the world, Sonic and Ashuro will join their forces to restore the order and return to their respective worlds.Credits:Author : AfterLife (Ashuro/Drakughost, Frenzy-Frenzless)Developers : AshuroBeta-testing : Frenzy-FrenzlessSpecial Thanks : FireRat, ProjectFM, FraGag, Ayla, Vladikcomper, MarkeyJester, Natsumi, Genesisdoes, Clownacy, Lazlopsylus, A.S.H., RedHotSonic, Valleybell, MainMemory, and all the Sonic Stuff Research Group's members, Sonic Retro...