Software developed by HAL Laboratory where I. Okuyama is credited
| Title ↓ | Published by | Year |
|---|---|---|
Eggerland 2 (迷宮神話)
MSX, MSX2 | PSG
|
HAL Laboratory , Unknown | 1986 |
Eggerland Mystery (エッガーランドミステリー)
MSX | PSG
Takeru
|
HAL Laboratory , Bawareth/Al Mithali , Prosoft , TAKERU , Microbyte | 1985 |