Super Prologue 21 by Sega

Console Name: Super Prologue 21
Original Name: スーパー・プロローグ21
Alternate Named(s): Segakara
Release Date: 1995
Country of Origin: Japan
Manufacturer: Nihon Columbia
Publisher: Sega
Developer: Sega / Taycan / Clarion
Predecessor: Prologue 21

Following the release of the Prologue 21 in 1994, Sega faced a lot of competition by companies such as Daiichi Kosho and XING which were releasing new models one after another. To keep their edge, Sega had to quickly released an updated version of the Prologue 21. There is many conflicting information on the release date of the Super Prologue 21. The earliest dated mentioned is 1995 was some other information point toward an October 1996 release.

The Super Prologue 21 was essentially connectivity update, introducing connectivity to the Internet to the Prologue 21 families.  The connectivity allowed to access the  Sega Connection (SMN) which gave access to an online song delivery systems and nationwide scoring functionalities. The Super Prologue 21 also introduced games that could be played against other participants. These games included:

Segakara song battle
The match is divided into a red group and a white group. Each time you sing, 10 unique character judges will appear on the screen and score, and the winning team will be decided based on the accumulated points for each red and white. Of course, it’s OK to play with them.
Let’s score
A segré thing that scores after singing. A word of comment, the highest score of the song that has been issued so far, the score of the previous 3 songs, etc. are also displayed. Sing the melody and rhythm as accurately as possible to get a high score.
It is a play function that tells the fortune from the person’s singing voice. A fortune teller is chosen before singing, and after singing, the result of fortune telling the next day or future will appear on the screen and give perfect advice. This is a particularly popular feature for women.
A unique function that sings according to the keys that change one after another. During the performance, the facial expression of the character in the upper right corner of the screen changes depending on the pitch difference between the song and the singing voice. At the end of the performance, the rank and comment will be displayed depending on the goodness.
At the end of the performance, a colorful slot screen will appear, spinning for a few seconds and then stopping. The previous roll is displayed in the upper right corner of the screen.
Segakara Song Battle 2
Multi-team battle type of “Segakara Uta Gassen”. You can play against 3 to 5 teams. During the performance, the adopted character (depending on the team) is displayed in the upper right corner of the screen, and the action is performed according to the pitch difference between the song and the singing voice. Each song is scored, and a mark such as “Good job” is displayed depending on the score.


The Prologue 21 system consists of many separate parts which hold the same part number then its Prologue 21 counterparts.

  • Amplifier (SKA-3000)
  • Commander (SKC-1000 / SKC-1000C)
  • Changer (SKA-2000A) which could be expanded to hold up to 100 CD-ROMs. The Changer also support VCDs.
  • Wireless Microphone Receiver for Sega-branded SKN-5000 microphones.
  • Song Navigators (SKH-4000A)
  • Remote (SKY-4100)

As the Super Prologue 21 was based on the Sega Saturn, it was built so it could also play Saturn’s game by connecting a Saturn controller into the Super Prologue 21. Although any Saturn controller worked, it was possible to buy Saturn controllers made for the Super Prologue 21 (SKP-1800). The Super Prologue also seen the release of one physical  game specifically conceived for this system. Called Super Prologue 21 GAMES Vol.1 (SKT-3500), the CD-ROM included 4 mini games:

Baseball fist club
Live-action movie software to enjoy the banquet play “Yakyuken” with cosplay girls. Of course if you lose …
Bing Bingo
Bingo, which is indispensable for parties, can be easily operated with a simple pad. Sexy production is also good!
Queen game
The two who were chosen as the extremely cute queen have a thankful command … Please look forward to what kind of command it is.
Ejihon Detective Agency
(C) Asukashinsha 1995 (C) SEGA 1995
Look for one mistake in the picture with the same letters. The popular Ejihon has become a game!


In July 2005, Sega would finally discontinued the Super Prologue 21 with the release of their newest Karaoke hardware called the CANDOONE.

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