Skeledragon

Skeledragon is a large dragon who lies in Death Castle when you go in The Daredevil Trial, as the last boss on Daredevil trial. If you fight him in Daredevil Trial X. His moves are powerful than his last moves. In the Daredevil Trial X is only unlockable after you defeat all bosses.

Corruption
When it corrupted Petey Piranha's mind an accident happened when He was controlling Petey Piranha

Location
He is located in Death Castle. Like The Evil Ninja Trio. You cant go back in there or fight him again. But you can fight him again in the Daredevil Trials.

He made his Re Debut as himself and his true form. A skeleton dragon. Someone who lived for 100 centuries said that he lost his skin 80 milleniums before