Easy kills
Before you start the level, first go to the section where you select Double Ammo, Supply Ship, etc. Only activate the radar. Then start hunting. When the level loads, type "Debugup" into the screen. Some text should appear at the top of the screen and the binoculars will come up. Deactivate the binoculars. Now hold down Shift and press L for fly mode. Continue holding down shift and press M to deactivate the trees. Then look into the sky and hit control. You will run super fast. Then bring up radar and fly through the air til you find an animal to hunt and kill it. If your up in the air then the animal can't kill you. Do this til you kill all the animals on the island.