The source code of Vs. Sonic.exe 3.0 is a fascinating artifact because it blurs the line between bad coding and artistic intent. The memory leaks, the cluttered classes, and the chaotic character swapping create a game that feels unstable and "glitched."
Here is an interesting write-up covering the technical anatomy, the chaos, and the secrets hidden within the source code of the infamous Vs. Sonic.exe 3.0 (and the canceled 3.5 build).
Originally developed as a massive follow-up to the legendary V2, Update 3 was intended to introduce new mechanics, characters like Chaotic and Fatal Error, and a complete engine overhaul. However, development was plagued by high-profile staff departures and internal conflict.