Like Ripplecast, Chromaflow is another WiiArts project that draws ripples on the screen. The interaction and program use exactly the same methodology as Ripplecast, but while Ripplecast emphasizes self-reflection through the experience, Chromaflow instead promotes a more collaborative interaction between users. In this work, each person’s WiiRemote draws single colored ripples. When each stroke with the WiiRemote is made and a virtual water drop is cast on the surface, it bounces several times as in Ripplecast like a splash. Currently, this application supports interaction for up to three people at a time. Thus, if three interactors work together, they can cast ripples in three different colors from three WiiRemotes. The ripples cast by the interactors start to flow on the surface of the screen, and when they spread and diffuse near other ripples, they start to mix, creating a colorful window. Sometimes ripples are dropped at unexpected locations, much like occasional random drops in watercolor drawings. This kind of effect can bring about unpredictable results created only by chance. Chromaflow may remind one of Jackson Pollock’s drip paintings in the sense that the audience can draw abstract images with ripples through diverse and active body gestures. Unlike Pollock’s canvas, which was placed on the floor, the canvas screen in Chromaflow is set up vertically on the wall. Also in Chromaflow, the shared canvas becomes an open field for the creation of many different kinds of abstract visual works. Similarly to Ripplecast, the position of where ripples drop on the surface are mapped to the WiiRemote interaction in a way that gives the look and feel of arbitrariness. This is because the gestures with the WiiRemotes are made in open space; thus, every time a movement is made, its direction or position is made a little bit differently. With the waving colorful water surface on the screen, the audience becomes immersed in a calm and reflective mode.