Knuckles is the guardian of the Master Emerald, a powerful gemstone tied to the history of the world. He also safeguards its home, Angel Island, a flying island paradise. He traverses the Earth’s varied, wild environments with incredible speed and impressive gliding techniques, while his stunning strength allows him to climb over, or bust through, any obstacle. Knuckles is a serious and straight-forward warrior, which often leads to friction with Sonic’s witty, casual way of life. 