Splinter Cell: Chaos Theory (2005 Video Game)
Guards can be heard saying "say hello to my little friend"
Main character says "I'm the keymaster and you're the gatekeeper" to another characterr
In the beginning of mission 5, if you interrogate the first guard you encounter, Sam will talk about him being "Henry Tuttle", and the guard will remind you to fill out a 267b/6. Altough in the film it's just a 27b/6.
In the bathhouse, a meeting takes places between Shetland and a Japanese I-SDF contact named Kaneda, along with two bodyguards. The meeting turns hostile and the bodyguard yells out Kaneda's name before shooting Shetland's henchman. Kaneda then yells out his bodyguard's name, Tetsuo, before Shetland shoots Tetsuo. This is a reference to Katsuhiro Otomo's animated film, Akira, in which the two main characters are named Kaneda and Tetsuo. In the film, Kaneda yells out Tetsuo's name under several occasions.
the line "Whatever. Crowbars are for geeky video game characters."
A character says "In Shetland we trust", a spoof of "In Tyler we trust" in Fight Club
In the Bathhouse mission a guard explains that he suffered hearing loss in Mogadishu. Another guard asks if he worked with the Rangers there. This is a reference not only to the premise of Black Hawk Down, but an incident in which a character is deafened by gunfire.
A trailer for the game is shown on the TV in the Penthouse mission
Both games featured the sinking of the USS Clarence E. Walsh.
During the final mission, at the escalator where there are 3 guards talking at the bottom of it...wait at the top of the escalator and one of the guards will be begin walking up to your level. Grab him and interrogate him to hear him make a crack about Metal Gear Solid.
During Stage 5, while infiltrating Displace International, Sam will come across two guards talking about Prince of Persia Warrior Within. It is the small cafe next to a laser filled hallway, past a keypad locked door. A second way to access the room is through a vent. Because Sam is inside the vent, the conversation becomes difficult to hear
During the missions in the JBA headquaters there are several crates which are identical to those which Fisher plants tracking bugs on when aboard the Maria Narcissa in Chaos Theory.
At the close of one of the missions, what appears to be a Shadownet operative,dressed similarly to Splinter Cell protagonist Sam Fisher, boards the same chopper as the player-character. In Chaos Theory it is revealed there are many more splinter cells other than Fisher and Tom Clancy's games are known to cross-reference each other. Also, there are several instances where the player will see an arcade game of Chaos Theory during several missions and on numerous multiplayer maps.
In the Xbox, PS2, GC and Wii versions of this game, the news broadcast after the credits recycles several clips from this game.
A Chaos Theory game can be seen in the arcade.