Crest of the Dragon King Hades of Darkness
- Original title
- 闇の竜王ハデスの紋章
- Title translations
- Yami no ryūō hadesu no monshō (Japanese Rōmaji), Crest of the Dragon King Hades of Darkness (English)
- Also known as
- Knight Leon, Leonidas
- Developed by
- Casio
- Year
- 1986
- System
- MSX