During the Last Of Us DLC - Left Behind you enter an arcade with Riley. At the back of the shop you can see a game titled Jak X Combat Racing a reference to Naughty Dog's other famous duo Jak and Daxter.

 

This is a nice references to the trilogy of games that brought Naughty Dog to their most critically acclaimed game and DLC.

In the Last of Us DLC - Left Behind you play as Ellie before she met Joel. In the chapter Mall rats you encounter an arcade called Raja's Arcade which houses a familiar arcade machine at the back with the title Jak X Combat Racing.