The Power Coins were supernatural golden coins, created by Ninjor, which were used as the power source of the original Power Rangers. The Power Coins are small discs of golden metal that contain the energy of a specific animal. They power the Mighty Morphin Rangers' Power Morphers, and allow the Rangers to transform or summon their power crystals to energize the Zords. The Morphin Power Rangers have Power Coins powered by dinosaurs and prehistoric beasts, the Thunder Rangers' Power Coins draw power from mythical animals, and the Morphin Ninja Rangers have Power Coins fueled by the life energy of wild animals.