Deep Jungle in the first Kingdom Hearts is inspired by Disney’s Tarzan. The world places Sora, Donald, and Goofy in the jungle alongside Tarzan, Jane Porter, and Professor Archimedes Q. Porter, while the plot adapts the film’s tension between scientific exploration, human society, and the wild.
Tarzan joins Sora’s party in Deep Jungle, using his agility and jungle combat style against the Heartless. The world includes locations such as the treehouse, bamboo thicket, tent, camp, and deep jungle areas. Clayton, a hunter from the film, becomes entangled with the Heartless and serves as the world’s major human antagonist.
The answer is not The Jungle Book, although that film might seem like the obvious choice for a jungle setting. In fact, a Jungle Book world was considered during development but was omitted because it would overlap too closely with Deep Jungle. Deep Jungle itself is exclusive to the first Kingdom Hearts and does not return as a regular world in later main entries.