Beatmania IIDX Substream
Encyclopedia
beatmania IIDX substream had a different songlist and could be linked to a Dance Dance Revolution
machine for simultaneous play. If either the Dance Dance Revolution player or IIDX player made mistakes, the other game became more difficult.
Dance Dance Revolution
Dance Dance Revolution, abbreviated DDR, and previously known as Dancing Stage in Europe and Australasia, is a music video game series produced by Konami. Introduced in Japan in 1998 as part of the Bemani series, and released in North America and Europe in 1999, Dance Dance Revolution is the...
machine for simultaneous play. If either the Dance Dance Revolution player or IIDX player made mistakes, the other game became more difficult.