Blue Zone

Tracklist

• 1
  Blue Zone

  Shizuka Kudo
  4:18
• 2
  ZIGUZAGU

  Shizuka Kudo
  4:59
• 3
  Blue Zone (original karaoke)

  Shizuka Kudo
  4:12

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Release credits

• イクマあきら
  arranger [2]
• 澤近泰輔
  arranger [1, 3]

Issues

• 

  B
  (Combined release view)
• 

  B
  Blue Zone

  8cm CD
  7 April 1999
• 

  B
  Blue Zone

  Digital Media (Amazon version)
  5 September 2019
• 

  B
  Blue Zone

  Digital Media (international Spotify & Deezer version)
  18 September 2019
• 

  B
  Blue Zone

  Digital Media (iTunes version)