Calderons are enemies in Kirby's Epic Yarn. They are brown, volcano-like creatures with black rocks inside of them. Calderons also have an orange mouth and a black and brown button eye. Their mouths show that these enemies are permanently unhappy. These enemies are rare, for they only appear in Lava Landing of Hot Land. Calderons sit in the hot Lava below Kirby and Prince Fluff. When the heroes near the enemy, it will start shooting out two flaming rocks and lava upwards. One flaming rock goes a short distance upwards, while the other goes up a high distance upwards. The rocks cannot be wrapped into yarn balls, so therefore, they must be avoided. Should the heroes touch the rocks, they will take damage and lose Beads. However, Calderons themselves can be wrapped into yarn balls to stop their constant eruption and get rid of them.