Kojima: First of all, when we came up with the idea for this environment, the jungle, we asked ourselves "What kind of a jungle do we want?" Since we're Japanese, we wanted to go with a jungle that had a Japanese flavor. So we visited this island called Yakushima in Japan.

We also went to a nearby island called Amami Oshima. This place has mangroves, these trees with roots that grow into the ocean, it's the only place in Japan where they have those trees. We also visited the Canadian forests, and the mountains nearby Tokyo.