512 bytes ZX-Spectrum intro by alx^bw placed 5th on CAFe'2002 demoparty.
This intro use some software cheating to get non-standard ZX-Spectrum colour mode, Multicolour timing mode synchronized for Pentagon-128K 2+, a russian ZX-Spectrum clone. Actually when your code refresh colour attributes every line (at Pentagon it takes 224 CPU tact) by pushing the data using stack you can get the multicolor effects like this one.
You should import and compile this source in Alasm ZX-Spectrum assembler (I have used v5.08) to compile. Or convert this source manually for SjASMPlus which is crossplatform.