The Dragonlord's servants kidnapped Princess Gwaelin and held her prisoner in the Swamp Cave, guarded by an evil fire-breathing Green Dragon (ドラゴン, Doragon) that the Hero, as the true descendant of Erdrick, must fell to rescue her.
Other weaker Green Dragons also appear near the walled city of Cantlin and inside Castle Charlock and the species has become a common encounter in other games as well.
- This is arguably the first boss in jRPG history. Both the monster and the battle's design has had some influence in other games, even some that are not of the genre like Kirby Super Star.
- Jade Dragons were also originally called "Green Dragons", it could have been because that was their japanese name (グリーンドラゴン - Gurīndoragon). But since Dragon Quest Monsters Super Light, they gave them the name "Jade Dragon" to differentiate them