Create 25 disguises as a Hero character

Complete Left Behind

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

Win the water gun fight

Play the Jak X game in Left Behind

Survive all of Ellie's jokes

Fully tuned a car for the first time using Mileage Points

Collect all comics

Break into every locked door using shivs

Find all training manuals

Upgrade and then break one of every melee weapon

Leave Ellie hanging after a job well done

Fully upgrade a weapon