Find ten treasures

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

Kill 20 enemies with the Wes - 44

Kill 30 enemies with the M79

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

Kill 20 enemies with a brutal combo

Find all 60 treasures

Kill 10 enemies by aiming while hanging from a ledge

Kill 20 enemies with Mk-NDI grenades

Finish the game in Easy Mode

Kill 30 enemies with the Dragon Sniper

Find 50 treasures