The Juggernaut possesses untold power, mystical in nature, which enhances his strength to an as yet unknown degree and makes him a seemingly irresistible, unstoppable being. Once he begins to walk in a certain direction, no obstacle or force on Earth has been observed to be able to stop him. Apparently, only he can stop himself. Some obstacles (many tons of rock, for example) or forces (such as plasma-discharge cannons) may slow his pace considerably, but nothing has yet stopped him permanently.