You stole an experimental super weapon from Merryweather... and gave it back.

Collect all trophies

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

Win the brick throwing contest

Upgrade and then break one of every melee weapon

Break into every locked door using shivs

Collect all comics

Find all workbench tools

Leave Ellie hanging after a job well done

Fully upgrade a weapon