The Orange Pure Heart is the second Pure Heart given to Mario on his journey. It is guarded by Fracktail, who was going to give it to Mario, Tippi and Thoreau when Dimentio came and shocked Franktail, making him go crazy. After deafeated, it is given to Mario by a sprit named Merlumia. When it is placed in its Heart Pillar in Flipside Outskirts, a orange door that leads to Gloam Valley will apppear on Flipside Tower