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Song Information

Artist: T.Σ.Generation
Composition: Konami Amusement (Yoshihiro Tagawa) & Kinjishi, DJ Mass, Suzaku, Genbu, Amuro & Killer
Arrangement: Konami Amusement (Aritomo Hamada)
BPM: 200
Length: 2:04
Movie: BEMANI Designers "VJ GYO"
First Music Game Appearance: beatmania IIDX 26 Rootage
Other Music Game Appearances: None.


Emergency. Emergency.
Two people of the Kaiden are accessing everybody.
Please prepare for a strong shot.

Song Connections / Remixes


X-DEN's title card.
  • X-DEN was added to beatmania IIDX 26 Rootage on February 26th, 2019 as the ONE MORE EXTRA STAGE in celebration of the 20th anniversary of beatmania IIDX's release. To access it, EX-HARD clear all three stages plus the EXTRA STAGE. The difficulty of X-DEN is determined by the difficulty of the EXTRA STAGE song, e.g. clearing an ANOTHER chart will give you X-DEN's ANOTHER chart.
  • When X-DEN is played in beatmania IIDX, the arcade LED ticker displays "KAI-DEN".
    • The X in X-DEN is the Greek letter chi, which is pronounced as kai. X-DEN is thus pronounced as kaiden.
  • With 1495 notes, X-DEN's Double HYPER chart holds the record for the highest number of notes of any non-long version Double HYPER chart, beating 3y3s' 1461 notes.
  • X-DEN marks the first collaboration between DJ TOTTO and HuΣeR in BEMANI.
    • Befitting the song's name, both of them are Kaiden-rank players.
  • X-DEN's video features ABDI and Echidna, representing DJ TOTTO and HuΣeR respectively.
  • X-DEN was added to beatmania IIDX ULTIMATE MOBILE on April 7th, 2022. It can be purchased from the SHOP for 20 MM.
  • X-DEN is available in beatmania IIDX INFINITAS (2020) as part of the beatmania IIDX INFINITAS Music Pack vol.18 (beatmania IIDX INFINITAS 楽曲パック vol.18).
  • The two guns in X-DEN's overlays are absent in beatmania IIDX INFINITAS (2020).

Song Production Information


Video Production Information


Difficulty & Notecounts

beatmania IIDX difficulty rated from 1 to 12. (Ratings and notecounts obtained from BEMANIWiki 2nd.)

Game SP Difficulty DP Difficulty
Notecounts / Charge Notes - 861 / 6 1418 / 9 2220 / 10 - 896 / 6 1495 / 9 2220 / 10 -
beatmania IIDX 26 Rootage→Present - 8 11 12 - 8 11 12 -
beatmania IIDX ULTIMATE MOBILE - 8 11 12 - - - - -
beatmania IIDX INFINITAS (2020) - 8 11 12 - 8 11 12 -

External Link