The Organic Swamp is a level world planned for Jimmy Neutron 4. Unlike the other places in the adventures of Jimmy Neutron, it does not have a strong basis to the series. It is not in the series.
The Organic Swamp is an environment unlike anyother. Its an enormous network of underground swamps and tunnels comprised entirely out of organic material. Living tissue lines the swamp's walls and purple fleshy tree stand in the water and dangle from the roofs. Jimmy must also overcome creatures of seaweed and ogres, while organic lilly pads help him cross over acid and piranha infested waters, and sinewy doors constructed by the Rabbids impede his progress.
- an example of the swamp's walls is the flesh inside the stomach of a human.