Software developed by Marvel Soft where Yanada is credited
| Title ↑ | Published by | Year |
|---|---|---|
| Step Up (ステップアップ) | Toshiba , HAL Laboratory , Zemina , National , TAKERU | 1983 |
| Title ↑ | Published by | Year |
|---|---|---|
| Step Up (ステップアップ) | Toshiba , HAL Laboratory , Zemina , National , TAKERU | 1983 |