The project exists both as a standalone fan game and as a popular mod pack for Sonic 3 A.I.R. :
In a final, desperate bid to stop Dr. Eggman and cure himself, Sonic confronted his foe. The battle was intense, with both combatants exchanging blows at incredible speeds. Sonic's panic and confusion, however, began to give way to determination and a clear understanding of his goal. Sonic Newtrogic Panic Download
Sonic (often referred to in the community as "Sawnic") features a hyper-stylish moveset that has been so popular it was ported into Sonic 3 A.I.R. as a standalone mod pack. Where to Download The project exists both as a standalone fan
Unlike traditional Sonic games, some zones features up to four bosses per zone (two per act). Advanced Moveset: Features modern 2D staples like the Super Peel-out Insta-shield Stylish Presentation: The battle was intense, with both combatants exchanging
You can find the most recent public builds on Sonic Fan Games HQ or Game Jolt.
(usually located on the right sidebar or at the bottom of the description). Extract the .zip file once downloaded and run the executable file to play.