The Fiery Chariot is an enemy in Ninja-Kid II.
It is a wheel of fire that appears when you take too long to complete a stage, or remain in one place for too long, a wheel of fire will appear on one side of the screen and fly across to the other side. As it crosses, it rises or falls with the height of your ninja. Touching the wheel is lethal. The wheel will appear whenever you remain in one place for more than ten seconds, or if your timer drops down to 20 seconds remaining. When the timer reaches 0 seconds, the wheel will become much faster and more aggressive, making it much more difficult to avoid.