Following the full disassembly of Sonic CD from the amazing work of Rubberduckycooly, I am releasing a port of Sonic CD running natively on PS Vita.
The porting is pixel-perfect and it basically runs on an internal resolution of 480x240 upscaled by 2x. This is an unofficial port, meaning that I forked the original source code and modified it to make it running on PS Vita. I am already in contact with the original author to integrate my changes on his repo.
Please follow the instructions on the release page to make it work. The VPK itself does not contain any copyrighted assets. It's not 100% perfect but it's fluid enough to be fully playable.