Peter Jackson's King Kong: The Official Game of the Movie Tips & Tricks

Spears and bones are more effective when lit on fire.

Use the following trick to kill a smaller dinosaur, such as the Velociraptor, easily. Throw a spear directly in its neck or head. REMEMBER: The spear does not need to be on fire.

First, kill bats to get his attention. If that does not work, throw spears then run around the middle wall and throw spears. Next, run around, keep throwing spears, then run through the door.

You cannot kill T. Rexes when you are a human. The one exception is the smaller version of a Rex in The Cave mission. Other than that, all your guns and spears can do is distract the Rex to come after you instead of your comrades. In most missions you must have the Rex come after you so that your comrades can open a door or complete an objective of some sort. Do not waste all your ammunition on a Rex. A few rounds of fire should be enough to distract it.

Get past the part where you cross the river and move up the building killing the flying dinosaurs. Afterwards swim to stairs. When you walk up them, there will be spears and a big black rapters like the one in the Venatosaurus level. You will be killing the first one, Kill it, but do not kill the second one. It will eventually end up killing itself. Quickly make your way to the building that has a thing on the top filled with fire. The second one will probably be out by then. Get up to the thing full of fire. Light a spear on fire. Wait for a good opportunity, then throw the fire spear and hit the raptor. Remain out of sight until the raptor decides to go to the cave where the ammo drop is located. As soon as the raptor walks into the bushes, they will start burning because of the fire spear. The fire will kill the dinosaur. This also clears your path, as the bushes blocked the route to the lever and ammo drop.

When you get to the point where there are natives on top of a bridge throwing spears at you, you can easily destroy them by picking up a spear, lighting it on fire, then throwing it at the supports. You can also throw the spear at the bushes surrounding the bridge.