Find 40 treasures

Defeat 30 enemies with the T-Bolt Sniper

Defeat ten enemies in a row with hand-to-hand combat

Finish the game in Normal Mode

Find 20 treasures

Defeat 20 enemies by shooting from the hip (without aiming with L1/R1)

Defeat 100 enemies with headshots

Defeat 50 enemies with hand-to-hand combat

Defeat five enemies in a row with headshots

Make five enemies drop their grenade by shooting them