At a Dusseldorf copy party in February 1987, someone loaded a single executable. The screen erupted: horizontal bands of color rippled downward like liquid light on a four-color machine.
The Hardware Trick Nobody Expected
The system's custom chipset — Agnus, Denise, and Paula — could rewrite color registers mid-frame. Demo coders synced palette changes to scanlines, creating gradients that appeared to span hundreds of colors.
By 1988 the demo scene was a coordinated creative movement, stacking copper bars behind scrolling text and sprites.
The copper bar became the scene's signature. You could identify a demo in a dark room within two seconds from that telltale shimmer. What started as a hardware exploit became an art form — and the machine became the canvas for a generation who refused to accept limits.