Software developed by Hertz where Yoshiharu Kotaki is credited
| Title ↓ | Published by | Year |
|---|---|---|
Psycho World
(サイコワールド)
MSX2 | PSG, MSX-Music
Takeru
|
Hertz , TAKERU | 1988 |
Sword of Legend Lenam
(レナム)
MSX2 | PSG, MSX-Music
|
Hertz | 1990 |