This video was made using Processing (Programming Language). It’s essentially about 1,000 differently colored lines traveling randomly, 1 pixel at a time. There is a condition that if a line is headed in the direction of a black color, it turns around and heads in the opposite direction. Some of the lines themselves are black, which created the “jellyfish”. The code written is a minor variation of Attack on Grayscale.
Camtasia was used for video editing, and the clips were sped up 700% to 4,000% of the original speed.