Have you ever heard of demoscene?

The demoscene is a computer art subculture that specializes in producing demos, which are audio-visual presentations that run in real-time on a computer. The main goal of a demo is to show off programming, artistic, and musical skills.

The demoscene first appeared during the 8-bit era on computers such as the Commodore 64, ZX Spectrum, Atari 800 and Amstrad CPC, and came to prominence during the rise of the 16/32-bit home computers (Mainly the Amiga or Atari ST). In the early years, demos had a strong connection with software cracking. When a cracked program was started, the cracker or his team would take credit with a graphical introduction called a "crack intro" (shortened cracktro). Within a year or two, the making of intros and standalone demos evolved into a new subculture independent of the software (piracy) scene.

Here's a couple examples made by 2 known groups, Razor1911 and Fairlight (FLT):

yep, been following it for a while back, www.pouet.net is one of the biggest portals, with a huge community, and tremendous amount of demos, intros, tools, etc. highly recommended for those interested..