Khidr is one of the main antagonists of the Rogue Legacy story and the first of the non-optional Boss monsters required to unlock the door to the final boss (and true antagonist).

Khidr is a giant eyeball who fires out red teardrop missiles in alternating patterns and orders, and does decent damage - his first attack sends four spiralling missile lines that turn clockwise or counterclockwise forcing the player to follow, his second attack sends out bullets in a pattern leaving seemingly random gaps for the player to be safe in and his third attack sends out evenly spread out bullets in every direction.