So, I heard some of you are a fan of this one game, Sonic Adventure 2. It’s a pretty great game, I must admit. Most people who have played are familiar with the very first stage, City Escape. The very first part has this little part where you do a bit of downhill “skateboarding.” Pretty fun, right?
Now imagine a game based on that, because that’s precisely what Sonic Team was working on at one point in time.
Sonic Extreme is a game recently discovered on a development unit for the original Xbox console that appears to be based off the Sonic Adventure 2 engine, possibly between the time of SA2 and Sonic Heroes, and features Sonic skateboarding around in an area reminiscent of Heroes‘s Seaside Hill. Additionally, there appears to be a battle mode with Sonic and Shadow built in the same split-screen style as Sonic Adventure 2: Battle. More videos after the cut.