On May 20, 1996, Super Mario Kart was the first game re-released under Nintendo's "Player's Choice" series in the United States. The Player's Choice line was reserved for best-selling games, with new lower prices (in this case, a suggested retail price of $34.95).

Hello Kitty World is a Japan-exclusive reskin and remake of the Game Boy game Balloon Kid that was developed for the Famicom in 1992. The game was co-published by Character Soft and Mario Co., a short-lived joint venture between Nintendo and the Japanese advertising agency Dentsu, and developed by Pax Softnica, the co-developers of the original game. Although the plot is different and some visual elements are changed, the game's mechanics, music and levels vary from being similar to nearly identical to Balloon Kid. The original game would go unreleased in Japan until the upgraded Game Boy Color port Balloon Fight GB was released in 2000.

In a 2011 interview, Ensemble Studios founder Bruce Shelley commented that Age of Empires III had such a large number of changes that "it just wasn't an Age game anymore." Furthermore, when the team tried to change the title to distance the game from the series, Microsoft wouldn't allow it.

Keeping in line with the Crazy Castle series' overseas licensing issues, the second game in the series, released on the Game Boy, would receive no less than five distinct versions overhauled with different licensed properties. It was first released as Mickey Mouse II in Japan, then released as The Bugs Bunny Crazy Castle 2 in North America, and was then brought over to Europe with the Mickey Mouse license again, but only had the number in the title truncated. It was later re-released in Europe as an updated version themed around the Danish media franchise Hugo, adding Super Game Boy support and a slightly remixed soundtrack. The game's final release in Japan as part of the Bugs Bunny Collection would revert to The Bugs Bunny Crazy Castle 2 version while including the Super Game Boy support, borders and palettes from the Hugo release.

According to a "Rare Revealed" video released to coincide with Rare Replay, the boss character Lord Woo Fak Fak was named in reference to Rare engineer Paul Machacek, who would often swear whenever he found glitches in the code. When these issues were fixed, he would shout "Woo!", thus inspiring the boss' name.

In the original release of Chapter 4, Susie's response to Catty drinking a bowl of milk in Hometown's alleyway read "(That's MY free milk, you furry degenerate...)". In the Version 1.01B update, this line was slightly rewritten to instead have Susie call Catty a "furry freak." No explanation was given for this change in the official changelog, which does not mention it whatsoever.

One of the most criticized social groups to spawn from the game is its unauthorized online dating community, where players attempt to court real-life romantic relationships and imitate sexual scenarios on what is intended to be a family-friendly online game. Due to oversights and loopholes in the game's age verification system, many predatory meetings and interactions between adults and underaged children or teenagers have occurred through Roblox both in and outside this community (including an incident involving a popular sub-game developer who was wanted by the FBI in the United States), with real-life incidents often receiving coverage on major news outlets to highlight the game's ineffective enforcement of its child safety policies. While dating as a whole is currently forbidden in the game's Community Standards, Roblox CEO David Baszucki expressed public interest in having officially-supported dating games and chatrooms for verified adult users later down the line (something he also admitted to being reprimanded by the game's safety team for) as part of a general initiative to retain its original aging playerbase. Chief product officer Manuel Bronstein described it as a need to "age up, [and] grow internationally". Roblox's official TikTok account also promoted this by posting fictionalized meet-up videos and posting comments supporting innocent adult-to-adult interactions. When pressed about child safety on the website in 2025, Baszucki responded:

The theme from Balloon Kid that plays when the final boss is defeated was later reused in the Game Boy Camera as additional background music. The composer of Balloon Kid's soundtrack, Hirokazu Tanaka, was also one of the composers for the Game Boy Camera's soundtrack.

Despite appearing low-budget and amateurish, the unauthorized browser game Pokéman Shooting Range was actually developed by film studio Threshold Entertainment, who were best known for co-producing the 1990's film adaptations of the Mortal Kombat series, and for producing the critically panned 2012 animated film Foodfight! The browser game was released on Threshold's website in the early 2000's as part of a subsite called "Pokémon Must Be Destroyed", and was inspired by studio founder Lawrence Kassanoff's extreme distaste towards Pokémon during the height of its popularity. The portal produced assorted animated and live-action videos showing a Pikachu plush doll being destroyed in different ways, with viewers being given the choice to vote on how the plush doll would be destroyed the following week. The site later shortened its name to "Must Be Destroyed" and expanded its targets to include 1990's pop culture figures deemed "annoying", such as the Backstreet Boys and the Taco Bell chihuahua mascot Gidget. The original Pokémon iteration of the website attracted a minor level of media buzz before the browser game was produced, and recruited two famous martial artists - Sammo Hung and Bruce Lee's daughter Shannon Lee - to film themselves "killing" Pokémon merchandise.

When deciding what characters would appear in the game, Nintendo EPD took inspiration from the original Donkey Kong arcade game, which established that Donkey Kong lived alongside humans. While the team debated how much human-related content and Donkey Kong Country-inspired elements would be included, producer Kenta Motokura mandated that the character Cranky Kong should appear because he was a fan of the character.

It was decided early on that another character would accompany Donkey Kong throughout the game, though no specific character had been included in the software design description. One developer suggested Pauline, with this idea being revisited following the implementation of Donkey Kong's "Zebra Bananza" form. The composer had written music for the transformation sequence, and the team decided to turn it into a song that Pauline could perform, having been established as a singer in Super Mario Odyssey. Both Motokura and director Kazuya Takahashi credited Pauline's inclusion with helping many of their ideas take form.

The Asian version of the Genesis port removes the MVS difficulty setting and replaces it with a Sound Test mode.

The character select backgrounds are different between the American and Asian versions of the Genesis port. The background is blue in the US version, while the Asian version has a black background along with the World Heroes logo.

A recurring oddity in the Pokémon games is that the Gym Leader and later Elite Four member Koga, the Kanto Region's Poison-type expert, threatens to defeat his opponents with both Poison and Sleep tactics. In Red and Blue, he states:


In Gold, Silver, Crystal, and their remakes HeartGold and SoulSilver, he states:


In FireRed and LeafGreen, he states:


Despite this, the only game in the series where Koga's main team uses any Sleep-inducing moves is Yellow, where two of his Venonats have Sleep Powder. In contrast, all of Koga's teams have incorporated Poisoning moves, with some of his teams being entirely composed of Pokémon using such moves. Although possibly a mistake, this might also tie into the theme of misdirection, which would be fitting for the ninja-themed Fuchsia Gym.

According to an animation reel from Neil Wrischnik, the Blocker Birds seen in The Phoenix Psanctuary were originally going to be enemies rather than NPCs, complete with unused animations and an unused trapping sequence suggesting that one of them was intended to appear as a playable villain character.

The "starburst effect" that occurs when bouncing on enemies is usually meant to expand, but in the first two Donkey Kong Country games, they were mistakenly coded to contract instead. This issue was fixed in the third game and the subsequent re-releases of all three games on the Game Boy Advance.

The developers of Crash Team Racing Nitro-Fueled were informed ahead of time that the game's post-launch support would be limited. Very little content was thought of, and none was worked on, for grands prix that didn't make it to release. Creative director Thomas Wilson stated the only scrapped grand prix concept he recalls is "Heroes vs. Villains", a superhero parody grand prix compared to the animated film Megamind, which would have featured a course in a "retro-futuristic" city and superhero and supervillain outfits for the racers.

Contrary to popular belief, there is no evidence that Mega Man 5 was banned or failed to release in Vietnam specifically because of Napalm Man's design, the similarities that his stage's design bears to areas within the country (including the Viet Cong's tunnel system used during the Vietnam War), or one of its enemies resembling a tiger species endemic to Vietnam among other similarities. The history of the Vietnamese video game market itself is poorly documented. It is currently believed that all video game imports were virtually banned by the Vietnamese government as a result of Cold War tensions until the implementation of the Đổi Mới reforms started in 1986, which allowed for some second-hand game console imports and rental arcades to pop up. They are thought to have become a more widely available commodity in the country in 1994, two years after Mega Man 5's release, when the United States lifted its 30-year-long trade embargo on Vietnam. There is no known documented information available on if there even was a Vietnamese reaction to Napalm Man at the time.

A short test map exists within the game that can only be accessed via an Action Replay cart. The map itself is a closed off room containing a series of platforms, Sabre Wulf, the treasure he guards, and a single power up. As the room itself has no exit, it is impossible to escape Sabre Wulf once Sabreman picks up the treasure.

Originally, Boggy's three children (Groggy, Soggy and Moggy) were intended to appear in the game as part of a challenge called "Don't Bring Your Kids to Work Day", but the challenge was scrapped due to time constraints. In 2019, it was discovered that Soggy and Moggy not only had fully completed models in the game, but also AI that was reused from the Minjos in the game. They can appear in Banjoland Act 6 during the challenge "Home Improvements: Igloo Edition", where Soggy can be found running on top of Clanker, while Moggy can be found running on top of the display case, both far away from where the actual challenge takes place. It is currently unknown if Groggy is anywhere in the game.