Complete the story mode in "Iron Man" difficulty.
Reach "Survival hobbyist" online ranking tag.
Complete the 12 secondary quests of Kovac's monkeys.
Complete a challenge with a "S" ranking.
Complete the story mode in "Normal" difficulty.
Find the 20 special plants of the Herbarium.
Complete a local or online challenge with another player.
Enter Santa Barbara Island.
Enter La Sonada Island.
Unlock your first skill.
Enter La Vendida Island.
Achieve your first instant kill on a zombie.