- The Oblask Dam in the Siberia level of 2 is a shout out to the Bylemore Dam level of GoldenEye 64. It uses a very similar dam, camera movement in the intro and a lot of the same noises. Hardly surprising given that some of that game's devs became Free Radical Design members.
- Similarly, "The Khallos Express" from Future Perfect seems to be a homage to GoldenEye's "Train" level, down to using the aforementioned intro camera movement.
- The Chicago level features a bar called O'Leary's.
- The Notre Dame level features a hunchback ally.
- The Neo Tokyo level from TS2 takes its name from AKIRA, but is intended as a homage to Blade Runner. It has the floating cars, the asian influenced culture, and the the incessant 'Cross Now' from the street signs.
- It also pays homage to Neuromancer, as the protagonist of the level, Ghost, is similar to the character Case. His gallery description mentions an AI Core and lists his occupation as a "cyberjock."
- The "Sincerest Form Of Flattery" Arcade League Series consists of missions that parody other First Person Shooters: Aztec the Dinosaur Hunter, Half Death, and Dead Fraction.
- Future Perfect features a cyborg monkey that looks suspiciously like a simian RoboCop.
- It also has a character that, when selected says "Do I have red on me?"
- Within the first mission of Future Perfect, Time To Split, a Marine can be heard saying to his compatriots, "Come on, Marines! You want to live forever!?
- In What Lies Below, when Cortez checks the files on Crow's computer and the self-destruction sequence starts, an animation appears with Crow wagging his finger and the caption "You didn't say the magic word".
- The contraption that Jo-Beth is strapped to as a sacrifice to "Princess" is similar to the one from Indiana Jones and the Temple of Doom.
- In You Genius, U-Genix, Cortez obtains the ID card of a scientist named Gordon.
- Also In You Genius, U-Genix, A fleeing guard cries "Game over man, game over!" A reference to the film Aliens. An earlier reference to Aliens occurs in "Time To Split", when a space marine is heard saying, "Shoot anything with teeth bigger than its face!" and "They're coming outta the walls! They're coming outta the goddamn walls!".
- When selected, the Insetik SD/12 says "By Your Command".
- Crow's last word is Rosebud.
- The Ghost Gun in the haunted house level is a shout-out to Ghostbusters, but it acts like the Ghost Dematerializer from Filmation's Ghostbusters.
- The soprano Ear Worm that features through the haunted-house level comes from End of Days.
- The Disco Club ending could be reference to a certain third-person shooter that was also made from devs' former company.
Shout Out / TimeSplitters