I called this program the "Basic Butterfly C64". I'ts based on article I found a long time ago on internet describing a basic demo program written in Lores-graphic for the Apple II. I tried out that program on my Apple II emulator and found it quite entertaining. Today , bored, I decided to rewrite that program for the C64 but in character mode instead of graphics. This since there is no lores graph mode on the C64. I also modified the code since the original effect did not look that good on my emulator. In the end of the video I show the code running on a real C64 machine.

Times fly by.... and I never got to do that assembler version of the code...
Over 10 years later I did a CC65 compiled version of this old program. You will find that and in the source code there even is the old Basic code included at GitHub.
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