The Ghost of Scar

Scar's Ghost is a manifestation of Scar's lingering darkness, so he is Scar's Heartless. He appears in Kingdom Hearts II and stalks Simba, due to the unease in his heart about taking his place as ruler of the Pride Lands.

Kingdom Hearts II
Sora, Donald, and Goofy return to the Pride Lands, only to find Simba being plagued by Scar's Ghost. Simba's fear and uneasiness while facing Scar's Ghost make him the laughing-stock of Shenzi, Banzai, and Ed.

Sora tries to find out the cause of Simba's fear; Simba only replies that he is unable to follow the footsteps of his father. Sora tries telling Simba that he just has to be himself, but to no avail. After failing to talk things out with Simba, Sora and company leave in a huff; they hide behind a log in the Oasis and, perhaps as a method of coercion, create a replica of Scar's Ghost to help Simba gather his courage. After they successfully helped Simba to regain his composure, Nala, Timon, and Pumbaa are confronted by Scar's Ghost, and Simba chivalrously tells the Ghost to disappear. Soon after, all of the Ghosts gather together, forming a giant Heartless known as Groundshaker.

Appearance
Scar's Ghost is nearly identical to Scar in appearance, except that his body is formed from a dark miasma, with tendrils of darkness streaming from it.

Strategy
Scar's Ghost appears in all of the areas in the Pride Lands, but never attacks. Instead, it chases Sora and his friends if they run away and circles them if they stand still. Undoubtedly, it has the lowest amount of health of any enemy—one HP—and will perish with one hit. However, it will reappear if Sora enters another area.