To understand the phenomenon of "neterukojiri," you first have to understand Cubic Ninja . Released in 2011, it was one of the early titles for Nintendo's new glasses-free 3D handheld, the Nintendo 3DS. The game is a puzzle-platformer where players guide the hero, , through over 100 mazes.
This interactivity transforms the experience from looking at a sleeping child to inhabiting the space where sleep occurs. It is a form of digital (間) – the Japanese concept of negative space or interval. The viewer is the active void surrounding the passive sleeper. neterukojiri 3d