In 1991 Rainbow Arts released the puzzle game Logical for the Amiga Homecomputer. It had a brand new gameidea, that was simple but very challenging: You had to sort coloured marbles under time pressure on various spinning discs. This sounds very simple, but if you started playing it you weren't able to quit the game for hours.

As Logical was one of my favorite games at the time of release, I decided to create an own game, that is based on this game mechanic, with modern music and graphics.

The original game idea was by Thomas Scholl, who has developed the original Logical together with Volker Elösser (Programming), Hakan Akbiyik (Graphics), Rudolf Stember (Sound) and Ralph Stock (Producer).