Find 45 treasures

You unlocked the special ability of buying guns from Little Jacob.

You were invited into your girlfriend's house.

You unlocked the special ability of Roman's taxi.

Find the Strange Relic

You have completed the first mission.

Kill 20 enemies with Mk-NDI grenades

Kill 20 enemies melee-attacking from behind

Kill 10 enemies by aiming while hanging from a ledge

Kill three enemies with one explosion five times

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

Finish the game in Normal Mode

Kill 50 enemies with the SAS - 12