The player has defeated the crazed Dr. Steinman

The player has successfully hacked a security bot

The player has successfully completed the Welcome To Rapture Level

Defeat 20 enemies with hand-to-hand combat

Save the medical volunteers

Save the damsel, but is she in distress?

Give the Gladiator a ride in the Sports Car

Killed 3 Helghast using 1 fragmentation grenade

Destroyed Stahl's Cruiser and left the planet on any difficulty

Took over the controls of the Mobile Factory

Shot and killed 3 Helghast using the Shotgun Pistol without reloading or switching weapons

Reached the cable car and gained access to Stahl Arms South

Killed 25 Helghast using Brutal Melee