You unlocked the special ability of Roman's taxi.

Finish the game in Easy Mode

Defeat 100 enemies with headshots

Defeat 50 enemies with the Dragon Sniper

Complete one Cooperative Multiplayer game

Defeat 50 enemies with the 92FS - 9mm

Find ten treasures

Defeat 50 enemies with hand-to-hand combat

Defeat three enemies with one explosion

Find the Strange Relic

Find one treasure

A title awarded for winning one of the top leagues in [Master League]