Hi. This is a general thread to mark an official place for discussing the 8-bit Sonic 1 disassembly I am undergoing. The project is now available on GitHub: github.com/Kroc/Sonic1-Z80-ASM The download includes a batch script and the necessary binaries to compile the ROM. You will need to provide your own Sonic 1 ROM file (renamed "ROM.sms") which is used to fill in the data banks. This disassembly is being done to aid in creating my level editor MaSS1VE: The Master System Sonic 1 Visual Editor, which is also on GitHub here. Continual praise and thanks goes to the community members who have made this possible, including David Declerk, ValleyBell and Penta Penguin.