* The [[http://www.youtube.com/watch?v=8WZgPXthWRA ending]]. [[spoiler: It's all the dead U.S presidents (including George Washington and Abraham Lincoln), they're in futuristic power armor, and they're here to save the world.]]
* One of the loading screen tips: "Don't be teammate, revive your jerks!"
* [[{{EasterEgg}} The Drudge rap.]] 'Nuff said.
* When walking through a series of tunnels, Mr. Ford walks comes across a hallway that is exactly the same design as the last one. He says "Whoa. Deja vu!" Prometheus responds with an explanation how architects will reuse designs to save money. [[TakeThatUs And how game designers on earth will do it because they're lazy.]]