I have continued working on cross-disciplinary production, such as pictorial images with cinematic qualities and painterly animation. This work, *Sandbox*, is an experiment in replacing painting and animation with a game engine. In this work, I used a game engine to create an “electronic sculpture” and attempted to visualize a non-tactile sense of reality. By following afterimages that traverse space, it aims to unsettle the viewer’s bodily perception. At the same time, an autoplay function was built in so that the game would assimilate into the environment like ambient music, becoming a “passive game / background game.” It is an interaction/installation in which the viewer/player can seamlessly move back and forth between “play,” controlled with a controller, and “viewing,” without using a controller.