Uhhh why did you make an unofficial repo? We were going to make the repo we were using public once we addressed a few key things, which we have done. Therefore, the official development repo is now public! Use this one! Of note, some changes since we did a preview release: -Code is now better documented. This should make it easier for people to dive in and work with the innards. -Special Stage framework added! Which is basically just a way to save and load the state of a level while you transition to and from a Special Stage. Make your own Special Stages! -Knuckles has his own independent start position now... -You can more easily change the screen width. You want your precious widescreen? You can get your precious widescreen!