Co-op

Cooperative Mode
Cooperative mode is an online multiplayer mode, which connects you with up to 2 more players, and puts you against a boss with a level according to the highest player level. If you are really far in the game you will even fight 2 bosses. The boss has a lot more health and deals more damage compared to dinosaurs in story mode. The aim of the game mode is to make the team work together to take the dinosaur boss down.

Tips and tricks
When you are versing a boss, it's helpful to have different roles for people. So for the person that is getting chased by the dinosaur, shoot the boss. If you are not either kill the small dinosaurs to make sure they don't harm the person getting chased. The other should follow the boss dino, hitting with the the hammer, so to weaken the health and when the shield has to be broken, you already have it being near dead, You don't want to go near the boss, because they sure pack a punch. So try to use distanced weapons on the boss. Weapons such as  Crossbows, rifles and bazookas are effective. Save the close up weapons for the dinosaurs, so a flame-thrower, shotgun or just your hammer.