It is the last demo from Logon System or actually a preview of Overflow's parts that didn't managed to get into a demo. He released it just before he left the CPC scene. The most important of them is the very famous Shadow of the Beast parallax scrolling, which is one of the most impressive CPC screens ever! It's the preview number 1. Another one I like is the 5th, showing a precrunched 3d animation. Very smooth!