How to Create a Custom Gn Math Engine for Sonic CD Using Chromebook and GitHub Repos We weren’t able to create a summary for you. Refresh your page to try again. gn - math has 7 repositories available. Follow their code on GitHub . gn - math has 7 repositories available. Follow their code on GitHub . gn-math has 7 repositories available. Follow their code on GitHub. 2 days ago · The following guides are all for the mainline Sonic the Hedgehog games released for the Sega Mega Drive/Genesis, which are by far the most popular choices for Sonichacking. May 10, 2025 · If you are new to Sonic ROM-hacking, you may be confused by which tools to use, what to use them for, or even just how to get started in the first place. To cut through the noise, here is an up-to-date (as of 2025) guide. It's only natural then that I've toyed around lots with Retro Engine, the custom-built engine used to officially ship remakes of the games (as well as retro revival Sonic Mania) between 2011-2022. One day, it could be possible, yes! If we are able to modify the scripts then we can basically write our own Sonic 3 using sonic 2’s engine! DO NOT download the source code ZIP archive from GitHub, as they do not include the submodules required to build the decompilation.