From Tekkenpedia

Jungle
Walls	Yes
BG Music	Didgerhythm

Jungle is a stage in Tekken 4. As the name of the stage suggests, this fight takes place in a jungle. Some fallen trees are in this area, and they surround the fighters. Elevated ground and trees that haven't fell also surround the fighters. There is a small body of water near some elevated ground. This stage was included in the Tekken 4 side game "Tekken Force" as the second stage. Either Panda or Kuma 2nd is the boss for this stage.