Troubled Windows (Toraburu Windouzu)
is the most notable OS-tan multimedia presentation created through the
net. It is somehow showing a possible intro to an imaginary anime show
(in which there also exists a Photoshop-modified picture, mimicking news
of a new animation release in a Japanese magazine.). Since it is
originally a flash animation, it features interactivity, where the
viewer can click to cause different visuals in the animation. The song used is "Sakuranbo Kissu" by KOTOKO, used in the visual novel
"Colorful Kiss", but in the OS-tan fandom, it has been adopted an
unofficial OS-tan theme song.