Collect all trophies

Break into every locked door using shivs

Find all Firefly pendants

Upgrade and then break one of every melee weapon

While in stealth, turn off the spotlight generator in Pittsburgh

Open all safes

Survive all of Ellie's jokes

Pick up Frank's note after it's discarded

Use bricks or bottles to lure an infected into attacking a human

Defeat Black Fang without getting hit

Acquired all trophies.

Obtained all weapon parts.