Defeat 10 enemies in 60 seconds with the China Lake Grenade Launcher

Defeat 4 enemies with the same explosion (all explosive items and weapons apply)

Pull 20 enemies over when hanging from a ledge

Beat the best score in the retro videogame

Find all Treasures

Complete the game in explorer mode

Complete the game in moderate mode

Find the Strange Relics

Perform 20 headshots from the rope

Play in the ocean near the sunken ship

Just prior to City Chase, stand perfectly still for 30 seconds (stage demo fail)

Climb to the very top of the Clocktower in the City