Reached 100 hold-ups.

Reached 300 Fulton recoveries.

Start the journey again after a week long break.

Wearing a cardboard box gives you that feeling of inner peace.

Defeated Pupa, Chrysalis, Cocoon, Peace Walker.

Attacked enemy soldiers by blowing up an oil drum or truck (single player only).

Cleared Chapter 2: The Phantom Hero.

Reached at least 100 stun attacks or sleep-inducing attacks.

Cleared Chapter 1: A Country Without An Army.

Captured a mech.

Cleared Prologue: An Army Without Borders.

Find the hidden desert flower.