Perform 10 combo buddy takedowns

Defeat enemies with a stealth attack, melee attack, headshot, and explosives, in that order, in 15 seconds

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

Defeat enemies with a pistol, machine gun, and grenade, in that order, in 15 seconds

Defeat 10 enemies in a row, alternating gunplay and hand-to-hand

Perform 30 vertical stealth takedowns

Drive away in the jeep with Elena without killing any enemies

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

Play with the lemur in the market and let it steal your apple

Complete the game in hard mode

Complete game with 70% or higher shot accuracy

Get three dolphins to follow the boat

Climb to the very top of the Clocktower in the City