After a long series of credits, Mathematical delivers psychedelic-style patterns generated in real-time. Instead of the screens being stored as bit-mapped images, they are generated using numbers.

Certainly more impressive on the programming side but some of the results move a little slowly and aren't always any more mind-bending that the quick 'n dirty way of doing things. There is a self-affining fractal generator, you can play about with the parameters though you can't save pics.

The whole job is accompanied by some average-type chip music, but we recommend you turn the volume down. Why do demos insist on having music? A couple of the real-time graphics effects are good, but otherwise average.