Mushroom Kingdom (KHPOR)

The Mushroom Kingdom is a world that appears in Kingdom Hearts- Path of Radiance. It takes place during the evens of Super Mario RPG: Legend of the Seven Stars, a Super Nintendo game released in 1995. The Keyblade that Sora receives for clearing this world is called Seventh Star.

Story
The story begins where Sora, Goofy, and Donald land the Gummi Ship outside of a castle. Sora, Goofy, and Donald run into the castle and find someone inside. The trio hides from the person inside, who eventually finds them. He introduces himself as Mario, and he is waiting for the Princess to show up. Just as Mario says this, the Princess arrives, and Mario joins Sora's party. Directly after this, Bowser appears and challenges Mario to a fight on top of chandeliers. Mario, along with the Princess, Sora, Goofy, and Donald, accept the challenge and defeat Bowser. Right after this, Star Road crashes, and separates everyone. Sora and Mario are together, while Goofy and Donald are nowhere in sight. On top of this, the Princess and Bowser are missing, too. Mario and Sora return to Bowser's Castle, and find out they cannot enter. A battle against Smithy occurs, and Mario and Sora win. After this, Mallow, a "tadpole" decides to help Mario and Sora find their lost friends. Sora, Mario, and Mallow enter a forest, where they find Goofy and Donald. Deeper within the forest, a doll by the name of Geno is resting. Geno is awoken, and a brief boss battle occurs here. Geno assists Mario, Sora, Goofy, Donald, and Mallow and they return to Bowser's Castle. Along the way, the party stops at Booster Tower, where Bowser assists the party, as well. The Princess is rescued on the trip to Bowser's Castle, where the final battle against Smithy occurs. Star Road is finally repaired, and Sora, Goofy, and Donald leave to go onto the next world.