Bonus Hunters - To get bonus hunters, complete an area in carrer mode. Save the game and exit. Then load the game and start a new career to get a new hunter. With each area completed, a new hunter will be unlocked.
X-Ray scope - To get the X-Ray scope, get all the tags in a level. Then play that level again in ''Quick Hunt'' mode. Press the X button while using the scope to see through the animals.