"Vib-Ribbon (ビブリボン viburibon) is a video game for Sony PlayStation. Developed by Masaya Matsuura (the former leader of the Japanese "Hyper Pop Unit" PSY S) and his NanaOn-Sha company, and released in Japan in 1999. The game was release in Europe the following year and was additionally re-released in Japan under the PlayStation the Best and PSOne Books greatest hits lines in 2000 and 2001 respectively.
Vib-Ribbon is a rhythm video game in the style of PaRappa the Rapper and Amplitude. The game was unique in that the software loaded into RAM, letting the player use any music CD to play against; the game could generate a unique level from any track. The graphics for Vib-Ribbon are simple, consisting of straight, white vector lines forming crude, angular drawings of the level and the character, a female rabbit named Vibri.
The game spawned two sequels: Mojib-Ribbon, which focused around rap music and calligraphy, and Vib-Ripple, which was similar to Vib-Ribbon but instead used digital images loaded into the game to generate the levels. Both were released exclusively in Japan for the PlayStation 2."
Source: Wikipedia, "Vib-Ribbon", available under the CC-BY-SA License.