Almost a year ago to the day, Sonic Retro forum member Orengefox shared with the world the discovery of two prototypes for Sonic Adventure and its sequel. While to the untrained eye the Sonic Adventure AutoDemo might not have seemed all that special, we here at Retro know better, our elite crack team of technologically-inclined persons more than excited to tear apart reams of code to find the secret caramel-filled goodness hiding underneath.
Indeed, it wasn’t long before all sorts of secrets were uncovered, including earlier versions of Ice Cap and Speed Highway’s “At Dawn” segment. But the deepest, most enticing artifact uncovered was the level architecture from a far earlier version of Windy Valley. Unlike the previously mentioned levels, the prototype Valley couldn’t easily be turned on, what was there full of pointers directed towards a build much earlier than what the AutoDemo used. While other people would get frustrated and walk away, I already stated above how excitable our crack team can get. It was only a matter of time before someone figured out the next step, with Retro Researcher evilhamwizard putting the pieces together, importing the third segment of Windy Valley into the PC version of Sonic Adventure DX: