PACHUKA of Sonic Cult has talked to Chris Senn, who worked on Sonic X-Treme. A wealth of information was received out of him, all of it will be available online at Sonic Cult soon. However, Senn also gave PACHUKA some music for Sonic X-Treme, which is also available at the above link.
If that wasn’t enough, PACHUKA is working on obtaining a PC copy of what was completed of the project. As soon as we get any new information, we will forward it to you. In the meantime, check the STH Area 51 message board for updates.