This project uses both creative and analytical methods to learn about cephalopod camouflage systems. Children were taught about how cephalopods change their color amd then conducted their own camouflage experiments with live squid and octopus. The experiments were supervised by graduate students from University of the Ryukyus. After the scientific investigation, all participants made an image of a giant squid and sperm whale battle using water balloons as color pixel. Naturally, we had water-balloon fight at the end of workshop: Kids vs Researchers.