All Zeon stories have been completed. (Any difficulty level)

Finish the game in Normal Mode

Kill 20 enemies with Mk-NDI grenades

Kill 20 enemies by shooting from the hip (without aiming with the L1 button)

Find 25 treasures

Kill 20 enemies with the Desert - 5

Find 10 treasures

Kill 20 enemies with a brutal combo

Kill 50 enemies with the PM - 9mm

Kill 10 enemies with headshots

Find five treasures

Completed "Escape!"