Much more twisted than the Twisted Forest, the Really Twisted Forest is home to a couple of Fusions who aim to break through the walls of the Jungle Outpost and capture Coco for Fuse. It is also the location of Mandark's Ballistic Cannon, which failed to shoot down Planetoid Fusion after Vilgax tampered with it.
The Twisted River passes through this zone, and the part of it running through the infected zone is extremely poisonous due to the Fusion Matter. However, giant filtering machines built by DexLabs filter the water at the ends of the infected zones to keep it from infecting Forgotten Falls, or, even worse, the entire ocean.
The infected zone, called "The Canopy", is the main part of this area and is home to several Fusion Lairs and dangerous monsters. A small base lies outside the infected zone, near the border of the Forgotten Falls, home to a power shopkeeper and a Monkey Skyway Agent.