Trivia: In Free Roam mode, the body of Jimmer Collins can still be found in the warehouse in which he was shot.
Trivia: Throughout the game, it is established that the Prince's "inner voice" is the voice of his dark side, the Dark Prince. However, this may not be the case. The Prince is first spoken to by the "inner voice" immediately after he acquires the Dagger of Time. In the Throne Room, the Prince overhears the Vizier's conversation, during which he says that, to paraphrase, the Dagger of Time spoke to him and "promised him power and riches". The Dark Prince promises the Prince the very same things throughout the game. At the end of the game the Prince relinquishes the Dagger of Time to the "ghost" of Kaileena, and only then is he able to confront and defeat the Dark Prince. Due to these facts, it is a plausible theory that the Prince's "inner voice" is not the voice of the Dark Prince at all, but is in fact the voice of the Dagger of Time.
Trivia: In the beginning of the game Nate Drake is on a boat with a reporter. The name brand on their wetsuits is "Ottsel." The term "ottsel" is used in the "Jak and Daxter" games to identify what type of creature Daxter is. The "Jak and Daxter" games are made by the same company as Uncharted: Naughty Dog.
Trivia: The unlockable Soul Reaver sword and the glyphs on the goth outfit are nods to the Legacy of Kain games, also developed by Crystal Dynamics.
Trivia: During the mission briefing for "End of Deception II", Crux says that Fenrir with the Alect squadron behind the controls is a threat too dangerous to attack head-on, so you must destroy the microwave generator powering the cloak. This isn't true. After you see the first three planes, fly straight ahead and once you've passed them and you can see the first Alect squadron member, slow down and yaw to the right. Once you've held that course for a few seconds, the tow Alect Squadron members in the lead will de-cloak and you can fire at them. Fire two QAAMs into the first one, and two normal missiles and a burst of your gun into the second. As for the rest, you'll need to rely on your flying skills to take down the Fenrirs before the cloak. It is difficult, but not impossible.
Trivia: If you type in A Hitchcock, many birds appear. This is a reference to Alfred Hitchcock's movie, "The Birds".
Trivia: At the very start of the first level, move to the bottom left of the screen and you'll pick up an extra life which is hidden behind the scenery.
Trivia: On the level called 'Tree Top Trauma' if you go up the slope at the start and jump the gap and then grind the pole, if you fall correctly which I think is to the left whilst you are grinding you will do the weird arm thing that Ricky Gervais does in 'Extras'. It is not exactly the same and I don't think it is meant to be there, but it does look like it.
Trivia: In episode 1, when Miss Strickland is using the megaphone to shout out of her window, she says, "Jack, Diane, I know what you're doing behind that tree." This is a reference to the John Mellencamp song "Jack and Diane" where Jack suggest that he and Diane run behind some trees.
Trivia: When Batman enters the clock tower, there's a flashback scene of Barbara being shot by the Joker. Before this occurs, go to the back wall and zoom in on the movie poster, "Dark Interlude." One of the names on the poster is Matthew Hagen. In "Batman: The Animated Series", Matthew Hagen was an actor who was transformed into the shape shifting villain Clayface.
Trivia: If an area has a missing texture that wasn't covered by the graphics team, there's a message on the walls that reads "I suck at making maps." This was something left by the level designers for the graphics artist to help them in placing textures on some walls. There is one elevator that if it glitches and doesn't spawn and you fall down the elevator shaft, you will find a few panels like this displaying this message.
Trivia: In Crow's Nest, on different difficulties, you are able to hear different voice actors from Rooster Teeth arguing about the apparent "password" to a door in the main hallway. The voices will reflect the Red vs. Blue character's personality that each specific actor plays and refer to things that happen to that character in the series (eg. Church getting pissed at Caboose for being a total moron, Grif and staff meetings/ammunition). Killing the knocker will end the conversation regardless of who is speaking at that time.
Trivia: At the end of the Aztec level when the space shuttle takes off, you can tell exactly what they did for the fire effects of the engines. Normal shuttles would have a column of fire blasting down from each engine and have an ear shattering roar. But in this game, only the ends of the engines burst into fire several times rapidly as it goes up and the sound is just a single explosive sound on repeat. To get the effect, the game programmers set it like a grenade exploding over and over and over again at on the end of each engine.
Trivia: When selecting a boss Masterbot, it shows the typical animation of the boss being featured on the screen with stars shooting by in the background. If you hold down the button A when selecting a boss, these stars will be replaced with the robot bird enemies found in several levels.
Trivia: Labyrinth of Death: After the first safe room, you have to go and hit the control to manually open a large door. It takes the door a few seconds to finally start opening. There is a horde of zombies on the other side waiting. Once it opens, if you are zoomed in with binoculars, your sniper scope, or happen to be right next to the door, you can see the zombie in the middle at the front is standing there saluting for a moment, and then snaps out of it and starts coming after the players with the rest of the horde.
Trivia: In Archery, there are secret targets (really fruits such as watermelons and oranges) hidden around all 12 levels for you to strike with your arrow. If you hit one you will get an astonishing 10 points. The fruit hidden in Stage 1 of the beginner level is the orange by the waterfall.
Trivia: Just before Protocol 10 starts, you end up in a giant fight with Joker and a good number of his goons. If you activate Detective Vision during this fight, you'll see that Joker doesn't have a skeleton. This is also true when he's holding Talia hostage in front of the move theater. This offers a hint to how the plot plays out.