Junichi Saito (GB Driver)

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Junichi Saito (GB Driver)
Programmers Junichi Saito
Language Z80 Assembly
Formats ?

Junichi Saito (GB Driver) is an unofficial name of the driver. It is believed to have been programmed by Junichi Saito, as it retains the same sound as his NES sound driver, as well as the first game to use the driver being a game from a company that he worked at.

To create music and sound effects, the users would have to program the modified Z80 the Game Boy had.

Release History

The driver was only used in one North American game, Battleship, which was also the first game to use the driver. There was also a Game Boy Color version of Battleship released exclusively in North America, but its music and sound is exactly the same. Later, the driver appeared in games developed by Paon. The composer of Boku no Camp-jou, Takafumi Wada said that all he knew about the sound driver's programmer is that he was from Kitazawa. His wife, Yoko Mizumoto, also used the driver in a couple games.


Released Title Sample
1989-12-22 Battleship (GB) (海戦ゲーム ネイビー ブルー)
1989-12-27 Boomer's Adventure in ASMIK World (GB) (てけてけ!アスミッくんワールド)
1990-04-06 Serpent (GB) (かこむん蛇)
1990-10-26 After Burst (GB) (アフターバースト)
1990-12-07 Kaisen Game: Navy Blue 90 (GB) (海戦ゲーム ネイビーブルー90)
1991-05-17 The Adventures of Star Saver (GB) (ラブルセイバー)
1991-05-24 Snow Brothers (GB) (スノーブラザーズ・ジュニア)
1991-12-27 Janken Man (GB) (ジャンケンマン)
1993-07-30 Tekichuu Rush (GB) (的中ラッシュ)
1998-12-25 Nada Asatarou & Kojima Takeo no Jissen Mahjong Kyoushitsu (GBC) (灘麻太郎・小島武夫の実戦麻雀教室)
1999-??-?? Battleship (GBC)
2000-09-22 Boku no Camp-jou (GBC) (ぼくのキャンプ場)
2001-02-12 Kikansha Thomas: Sodor tou no Nakamatachi (GBC) (きかんしゃトーマス ソドーとうのなかまたち)
2001-03-23 Nintama Rantarou: Ninjutsu Gakuen ni Nyuugaku Shiyou no Dan (GBC) (忍たま乱太郎 忍術学園に入学しようの段)


Frequency Registers

754 = C
6E4 = C#
67A = D
615 = D#
5B7 = E
55D = F
509 = F#
4BA = G
46E = G#
42A = A
3E5 = A#
3A6 = B