The Dark Dragon is the final boss from the videogame Shining Force. He was the dragon that was put to slumber for 1000 years from the sword known as the Chaos Breaker.
After Darksol was defeated, he sacrificed himself to Dark Dragon so he would be resurrected and kill anyone that gets in his way. In the end, he was defeated and sealed by the Chaos Breaker once more by Max. Afterwards, the tower sank into the ocean.