- Leaves of various tree species, such as Ficus, Celtis, and Canarium.
- Fruits of rainforest trees, such as figs, wild bananas, and rambutans.
- Flowers of rainforest plants, such as hibiscus and orchids.
- Bark and twigs of certain trees.
- Insects and small animals, such as lizards and frogs (only occasionally).
The tree kangaroo is an important seed disperser in the rainforest ecosystem. It plays a crucial role in maintaining the diversity and regeneration of rainforest plant communities.