Inspiration and Construction
With this in mind, Phineas and Ferb, along with the rest, created a robot vehicle that worked as that: a highly unconventional vehicle. They built the vehicle with some animal parts in consideration, like gorilla hands and the neck of a giraffe.
Once the gang managed to cross the gorge, a single mistake by Buford caused them to get off the machine and then hang on some vines for their lives.
The vehicle has the body of a lion, the neck of a giraffe, the trunk of an elephant, the arms and hands of a gorilla, the lower half of a cheetah and a monkey tail.
According to the song based after it, they were originally supposed to add a snake for the tail and the engine is "fashioned after baboon adrenal glands."