Jenny and Jackie watch "To Kill a Mockingbird" on TV if you sit down with her at her apartment.
The graffiti seen throughout the game was created by active Swedish graffiti artists. They spent a long session creating works on a flat gray or white wall that were photographed and scanned in as textures for the game.
The game opens and closes with the line "wake up." 'Captain Midnight' by Tomahawk, a song which plays at the start of the end credits, also opens with the same line.
A movie poster seen in game, "Jimmy Eriksson: Man-At-Arms", is homage to the level designer of the same name.
While wandering the subway searching for Jenny's place, a homeless man sleeping on a bench has a TV in a shopping cart playing the news. If you wait, after the news is an awesome heavy metal video show that shows actual videos from actual artists in surprising, if not tiny, screen quality. Sparanza, El Caco, Closer, and others.