Find ten treasures

Defeat 20 enemies with headshots

Find one treasure

Finish the game in Easy Mode

Kill 30 enemies with the Dragon Sniper

Kill 50 enemies with the M4

Kill 50 enemies in a row without dying

Find 20 treasures

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

Kill five enemies in a row with a single punch, after softening them up with gunfire

Kill 20 enemies with the Wes - 44

Kill five enemies with a single punch, after softening them up with gunfire