The limited edition of the Xbox 360 release of the game came bundled with a CD of the game's soundtrack, and a "mini massage strap" (a small wand vibrator that can be attached like a keychain) as pre-order bonuses.

When Deadpool is about to fight a match against Magneto, he will say: "Magneto... Welcome to die!" This is a reference to the 1992 arcade game X-Men, where Magneto greets the player characters with the broken English phrase: "X-Men... Welcome to die!"

On March 31 and April 1, 2003, seven young men in the city of Sturgis, Michigan placed at least 32 signs around local businesses, schools, banks, the city hospital and post office quoting a line from Zero Wing's infamous English translation as an April Fools' prank: "ALL YOUR BASE ARE BELONG TO US, YOU HAVE NO CHANCE TO SURVIVE MAKE YOUR TIME". Although it was a popular internet meme at the time, residents were not familiar with its origins and took offense. Sturgis Police chief Eugene Alli explained that the signs could be "a borderline terrorist threat depending on what someone interprets it to mean", and reported that the police station received numerous calls from concerned citizens and business managers about the signs, interpreting them as a homeland security threat related to the War on Terror. The group was arrested and charged with disorderly conduct, and released apologies to the press.

During Chapter 5, when Spoiler:several members of the Van Der Line gang end up shipwrecked on the tropical island of Guarma, Dutch and Arthur will be held at gunpoint by the local authorities. When questioned for his name, Dutch will give the false alias of "Aiden O'Malley", a direct reference to the character of the same name from Grand Theft Auto IV.

Using console commands, a player can re-enable the cut "Child at Heart" perk, originating from Fallout 3. Doing so reveals cut content which would have allowed a player to obtain the unique weapon Euclids C-Finder from Max in Freeside by passing a dialogue check with this perk. Max uses the line: "Reach for the sky, Mister!", referencing the Pixar film "Toy Story", but if Child at Heart was enabled, the player character's dialogue would consist of a second follow-up reference, this time to Buzz Lightyear.

A Kombat Kode (717-313) will display a message on-screen before beginning a fight which states: "RAIN CAN BE FOUND IN THE GRAVEYARD". As the ninja character Rain was only included in the game's coin-op arcade version as a prank by director Ed Boon, the Graveyard stage would have originally included rainy weather effects but was cut from the final release. This planned effect was able to be recreated after raindrop sprites were found in a 2023 source code leak.

During a cutscene early in the game's story, Daxter and Pecker get into a spat while Jak is confronting Damos following his victory in the Spargus City arena, concluding in Daxter gesturing towards Pecker where he appears to be flipping him off. In the final retail version of the game, the way this scene is shot obscures the gesture from view, but by using free-cam mods on an emulated version of the game, it can be seen that Daxter does indeed flip off Pecker, but with two fingers as opposed to just the middle digit (the middle finger equivalent in certain countries beyond North America).

Activision originally wanted players to have the ability to step on civilians, but the game's director Jon Burton pushed against this, feeling it was too violent for younger audiences.

The game's director and programmer Jon Burton recalled that crunch work had become very prominent during the last four months of development; he worked 19 hours a day, 7 days a week. This experience motivated him to leave programming and focus strictly on directing game development.

According to director John Gelardi, the game's title is a reference to the origins of the word "dinosaur", which is derived from the Greek words "deinos" (meaning terrible) and "sauros" (meaning lizard). WDR Studios felt this name was appropriate as it appeared to have never been used before for a dinosaur-centric horror game.

Three weeks prior to Grand Theft Auto VI's release, the animated series South Park included exclusive footage from the game as a gag and plot device in the season 29 episode "Guinea Pig on a Stick". The footage showed Jason picking up freshly laid dog feces at Vice Beach and slapping it in a bystander's face. Rockstar Games received a Special Thanks credit at the end of the episode for providing the footage.

Datamined character data files reveal that a Spiny, a Thwomp, a Blooper, a Ninji, a stack of Goombas, a Chain Chomp, a Fuzzy, a Banana Peel, and an unspecified "bird" racer were all seemingly planned to appear in the game's base roster, but were cut.

In Chapter 4, during Susie and Noelle's conversation in the Holiday manor's basement, Noelle mentions being reminded of "this guy that gets really mad about games... and he made this goofy horror series... about this bucket with ICE-E's face that tries to kill him?" This references two different web shows by YouTuber James Rolfe: The Angry Video Game Nerd, in which the title character profanely reviews video games of oftentimes poor quality, and Board James, one episode of which depicts the title character and Mike Matei being menaced by a sentient version of the toy Mr. Bucket.

The in-game version of the 2025 Jamie Paige & OK Glass song "BIRDBRAIN", first created for UNBEATABLE's DLC pack THE JAMIE PAIGE CONTENT COMPANION and later featured in Fortnite, is based on a radio edit that Paige put together for her appearance on the WNYU series Vocaverse. While the song is mostly identical between the radio edit and in-game edit, replacing all instances of "fuck" and "shit" with chicken noises to abide by FCC and ESRB guidelines, the censored version of the song's bridge is re-recorded for the in-game rendition. In the radio edit, Paige notes that the Vocaloid voice bank used for the song, Kasane Teto, "can't say ['my penis'] on the radio... unless it's in Australia," referencing an incident where the uncensored version of "BIRDBRAIN" was played on Australian radio station Triple J. The in-game version, meanwhile, has Paige scold Teto by pointing out that "this is a video game, the ESRB will have our heads," referencing a prior instance where music in UNBEATABLE had to be censored to avoid an M rating.

World of Warcraft: Forever was developed following the observation of several players of World of Warcraft Classic electing not to move on to "The Burning Crusade Classic" expansion, instead wanting to experience new content at the original Level 60 cap. The "Season of Discovery" expansion to Classic was also created as a means of seeing what could be done and added with the Vanilla level cap. According to World of Warcraft Classic lead designer Tim Jones, four main pillars guided the design philosophy for World of Warcraft: Forever:

• New additions had to be in the spirit of Classic as opposed to novelties (i.e. no Flying Mounts or Level Scaling); Azeroth remains dangerous; difficulty is derived from player preparation and cooperation as opposed to arbitrary difficulty
• New content should be available for all levels of play, and not all stories are about saving the world
• No level cap increase; leveling is only way to catch up
• Trying to stay aware of how quality-of-life changes can affect how players socially interact with one-another

While developing the plot for Batman: Arkham Knight, Warner Bros. Games concluded from a ratings analysis that certain scenes would cause "issues", so they requested a Mature rating from the Entertainment Software Ratings Board. Rocksteady Games founder Sefton Hill was initially surprised and scared by this, as the game didn't include "gratuitous blood or swearing" and he believed the rating would take away the team's creative freedom. After a phone call with WB Games' vice president of production Ames Kirshen calmed these fears, Hill agreed to go forward with the M rating.

The rating was likely triggered by scenes such as the player as Batman interrogating a Militia grunt by using the wheel of the Batmoblie to torture him for information, the Professor Pyg sequence with blood being splattered all over the room, and unarmed characters being shot in cutscenes and while playing as Spoiler:the Joker. Hill was aware that this meant certain people would not be able to play the game, but he stated that he didn't want to compromise any of the game's content despite not writing the game with that rating in mind.

A random encounter that one may come across is a pipe sticking up out of the ground emitting a gas with a corpse holding a note that reads: "PIPE IS LIFE". This was originally a joke idea that level designer Zachary Wilson proudly put in as "some nonsense [he] made at 8PM on a Wednesday at the end of the project when no one was looking."

According to planner Atsushi Tomita, the team originally planned for the final boss Apocalypse to be human-sized, but eventually decided against it due to the lackluster reaction to Thanos as a boss in the previous game, and because of the effort and memory capacity it would take to create. Instead, they decided to make him huge to save on space (by giving him minimalistic animations) and to surprise fans. The freed up space was used to add Cammy into the game.

In November 2005, the watchdog advocacy group MediaWise (controlled by the National Institute on Media and the Family) joined by United States senator Joe Lieberman published their annual report on offensive content in video games. At the press conference to present their findings, they highlighted games featuring cannibalism, and particularly criticized F.E.A.R. and Stubbs the Zombie in Rebel Without a Pulse as games to avoid out of concern that they would be harmful to young children, despite the games being aimed at a mature audience. Developer Wideload Games fired back with a humorous response claiming the watchdog group was arguing semantics, as Stubbs ate brains not because he was a cannibal in the vein of a serial killer, but because: "Stubbs is a zombie. [...] Zombies eat brains. That's what they do."