Mushroom XIII are a group of minor villains in the video game; Kingdom Hearts II: Final Mix. They are a group of Emblem Heartless that Sora encounters during his adventures. Each one of the thirteen members challenge Sora in a Mini-game in the same area that Sora fought previous bosses, and they won't leave until they are satisfied.
- No. 1 - (leader)
- No. 2
- No. 3
- No. 4
- No. 5
- No. 6
- No. 7
- No. 8
- No. 9
- No. 10
- No. 11
- No. 12
- No. 13
- The Members of Mushroom XIII have similar traits towards the members of Organization XIII.
- Each one of the members are located in a certain area where Sora and his friend were before. Most of them are located where a previous boss battle was fought.
- No. 1 is located in Memory Skyscraper, after the defeat of Xemnas
- No. 2 is located in Christmas Town, where Sora fought the Experiment
- No. 3 is located in the Beast's Castle, where Sora fought Xaldin.
- No. 4 is located in the Land of Dragons, where Sora fought Shan-Yu.
- No. 5 is located in the Cave of Wonders.
- No. 6 is located in The Underworld, where Sora encountered Demyx.
- No. 7 is located in Twilight Town within the Tunnelway
- No. 8 is located in Twilight Town, outside of Yen Sid's Tower
- No. 9 is located in Radiant Garden, where Sora fought Demyx.
- No. 10 is located in Isla de Muerta.
- No. 11 is located in the waterway of the Timeless River.
- No. 12 is located in Twilight Town, outside the Old Mansion
- No. 13 is located in the Great Maw in Radiant Garden, where Sora fought 1,000 Heartless.