Today, this file is the "Holy Grail" for the ROM hacking community. Because the original source code leaked or was reconstructed through disassembly, fans have used it to create "Sonic 2 Absolute" or "Sonic 2 Delta." It has moved from being a commercial secret to a of community-driven preservation.
: The code reveals the "Sonic Physics Guide" in action—using fixed-point arithmetic to handle high-velocity movement and complex slope detection without a dedicated math coprocessor. sonic2-w.68k