Dance Dance Revolution 2nd Mix with beatmaniaIIDX CLUB VERSiON (c) 1999 Konami.
DDR 2nd Mix with beatmaniaIIDX CLUB VERSiON has a completely different song list from 2nd Mix, instead featuring all 13 songs from beatmania IIDX CLUB VERSiON. The two arcade machines are designed to be linked to each other, allowing simultaneous play by two to four players (up to two on each machine). One song is selected by the IIDX player(s), and is then played on both machines. For the DDR player(s), only one difficulty is available for each song, although there is a different step set for Doubles mode. If a player on either machine fails the song, play continues as long as at least one player is passing.
CLUB VERSiON also introduced Vivid mode, which changes the color-cycling for arrows based on their placement within each bar of music. This allows players to better time their steps based on visual information, and has been enabled by default in most subsequent DDR games.

>>> TECHNICAL DETAILS
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Main CPU : PSX (@ 16.9344 Mhz)
Sound Chips : SPU (@ 16.9344 Mhz), CD/DA
Palette colors : 65536
Players : 2
Buttons : 6

>>> TRIVIA
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Exact release date : April 21, 1999

>>> GAME SERIES
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1. Dance Dance Revolution (1998)
2. Dance Dance Revolution 2nd Mix (1999)
3. Dance Dance Revolution 2nd Mix with beatmaniaIIDX CLUB VERSiON (1999)
4. Dance Dance Revolution 2nd Mix with beatmaniaIIDX substream CLUB VERSiON 2 (1999)
5. DDR Best of Cool Dancers (1999)
6. Dance Dance Revolution 3rd Mix (1999)
7. Dance Dance Revolution USA (2000)
8. Dance Dance Revolution 3rd Mix Plus (2000)
9. Dance Dance Revolution 4th Mix (2000)
10. Dance Dance Revolution 4th Mix Plus (2000)
11. Dance Dance Revolution 5th Mix (2001)
12. DDR MAX - Dance Dance Revolution 6th Mix (2001)
13. DDR MAX 2 - Dance Dance Revolution 7th Mix (2002)
14. Dance Dance Revolution Extreme (2002)
15. Dance Dance Revolution Extreme 2 (2005, Sony PlayStation 2)
16. Dance Dance Revolution with Mario (2005, Nintendo GameCube)
17. Dance Dance Revolution SuperNOVA (2006)
18. Dance Dance Revolution SuperNOVA 2 (2007)
19. Dance Dance Revolution X (2009)

>>> OTHER GAME RESOURCES
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Game's rom.