"vib-ribbon" was released by nanaon-sha (the creator of "parappa the rapper") in 1999, and also did not use instrument-shaped controllers. in this game, players had to maneuver the protagonist through an obstacle course by pressing buttons at the correct time. these courses were generated in a way that depended on the background music and players could load their own music to play along. while it was praised for its unique style and timeless artistry, its simple vector graphics proved difficult to market and the game was never released in north america. bemani's "samba de amigo", released in 1999 and on dreamcast in 2000, featured maraca-shaped, motion sensor controllers. the game made use of "social gaming", allowing two player gameplay and providing a spectacle for onlookers. in 2001, "taiko no tatsujin" combined traditional japanese drums with contemporary pop music, and became highly successful in japanese arcades. the game was later released on consoles in the west (as "taiko drum master") and the franchise continues to receive new installments in japan. "gitaroo man" featured a guitar-playing protagonist, 4 years before the release of "guitar hero", though the game employed a conventional rather than guitar-shaped controller. "gitaroo man"'s creator, keiichi yano, further created "osu! tatakae! ouendan", a rhythm game for the nintendo ds using its touchscreen features, which was a highly demanded import title and led to a sequel in japan and a western variation of the game in "elite beat agents".