Mini Demo.. hardcore?

Hi all! Actually my 1st visit to this site and I love the idea of having a "looking for a game name" board.

Sorry that this is not a game Im looking for, its a demo/intro I saw once. (I dont think It was a cracking screen)

Only thing I can remember is it was very short, the screen was full of morphing / rotating polygon shapes (cube, pyramid, etc) that were transparent (glenz?). Each object was an offset from the previous.. like they followed each other. They didnt move, each one rotated on its own axis (which made a grid out of them). Maybe the background changed colour. The word Hardcore rings a bell, and it had a funky techo track that looped (music must have been less than 15 secs long)

Maybe it was advertising a BBS or something, ... some pages of text.

Sorry thats all I can remember really

Cheers