The Gorilla is a dark grey circle with a small tail. It has a small, lighter grey snout with 2 black dots. The same color of the snout is also used on its face. Its eyes point to the top-left.
When you are a Gorilla, use your 20% speed boost on hills to escape from predators or chase after prey. A good idea is to camp on a hill until prey passes by you. Immediately through a banana/coconut at it, and dash after the prey when it is stunned, using the speed boost on the hill to give you an advantage and allow you to catch up with it if it is ahead of you. If you are being pursued by a predator, go on a hill and use your advantage with speed on it to get a head start in running away from the predator. When on the hill, turn around and throw a banana/coconut at the predator to stun it, allowing for a quick escape. Since most predators cannot go on hills, you should be able to slow them down as they have to take a side-cut around the hill, while you can cut straight across the hill. Since you are also pretty fast in water, you can use that advantage to pursue prey or escape predators, unless you're talking about a crocodile or a hippo or something like that.
If you want to level up quickly, you should camp on a coconut or banana tree because they give you a lot of xp, or use your ability to hunt, as coconuts give more than enough time to kill prey.