Classic Mario World: The Magic Crystals is a ROM hack/mod of Super Mario World.
While Mario and Peach visited Yoshi in dinosaur land Bowser found a new source of power known as the Magical crystals, these little small crystals have the power to make his owner stronger than ever, with this power at his hand Bowser kidnapped Princess Peach and all Yoshi's friends, with that Mario and Yoshi decides to go on an adventure to save them!
