The character of Octoman is portrayed as much more angry and agressive in the English localization of Star Fox Command than he is in the original Japanese script. Take for example, this bit from the Slippy's Resolve story route:


Re-translating the Japanese text, however, reveals:


Also in the English version of this game, Octoman has a rather baffling line later on in this same story route, where, when facing against Slippy and his fiance Amanda, he tells his subordinate Zako (Sharman in the Japanese version) this:


It goes without saying that this does not appear to make any sense because Slippy and Amanda are frogs, not humans.

However, re-translating the Japanese text reveals:

The English prologue for Star Fox Command, when describing Falco's whereabouts after he left the Star Fox team yet again, says:


This actually omits one small detail from the Japanese script: that Falco went back to hanging out with Katt Monroe and presumably the rest of his old gang, FREE AS A BIRD. Here is the original Japanese text, for comparison:


Which translates to:


This adds up, as one can even see Katt's ship in the background of Falco's profile within the prologue.

In a June 1997 Nintendo Dream interview with Shigeru Miyamoto regarding Star Fox 64, when asked if he would produce a sequel, Miyamoto responded with:


Funny enough, both of these ideas would come to fruition with future titles such as Star Fox: Assault, which hugely emphasized its multiplayer battle mode, and Star Fox Command, which revisited many of the real-time strategy elements that were previously experimented with in the then-unreleased Star Fox 2.

When Peppy Hare appears as a playable pilot in the "Goodbye Fox" story route, he dons his classic outfit from the original Star Fox and Star Fox 64, his green scarf in particular hailing from the former (in the latter game, he instead wears a red scarf).

In Star Fox 64's ancillary material, Planet Aquas is said to be an entirely water planet with its surface 100% covered by oceans. Star Fox Command however, would contradict this by showing there to be islands on Aquas in the Slippy's Resolve ending; Command's official Japanese guidebook even claims that Aquas' surface is now only 80% comprised of oceans.

In a Q&A with Takaya Imamura in 2023 on this subject, he theorized that perhaps, somewhere in-between the events of Star Fox 64 and Star Fox Command, the islands were created by underwater volcanic belts within Aquas' oceans, likening it to the emergence of Nishinoshima, a volcanic island in the Ogasawara Archipelago.

An early working title for Star Fox Command was merely "Star Fox DS".

Each playable pilot in Star Fox Command has their own unique character musical themes suited for them. Of the playable cast, Fox, Falco and Slippy are unique in that they're the only characters to have additional themes when attacking enemy bases. Fox's enemy base theme in particular is a rearrangement of the Area 6 theme from Star Fox 64.

According to the official Japanese Star Fox Command guidebook, Slippy's home world is the water planet of Aquas.

Two of the game's endings make references to the F-Zero series. In the first ending, "Goodbye Fox", Falco Lombardi can be seen wearing a pair of boots that belong to F-Zero's Captain Falcon. In another ending, Fox and Falco are seen entering the "G-Zero Grand Prix", a mock up of the F-Zero Grand Prix. What's more, the two convert their fighter ships into racing vehicles, as did a character in the F-Zero games known as James McCloud, himself a tribute to James McCloud of the Star Fox games.

One of Star Fox Command's most infamous endings see Krystal ousted from the Lylat System and becoming a bounty hunter named "Kursed" in another galaxy. Looking at the Japanese script however, reveals a slightly different story:


A direct translation of this into English would be:


It shows that Krystal instead renames herself to クラゾア (Kurazoa), which translates to Krazoa.

This is clearly a reference to the ancient tribe that once ruled Dinosaur Planet in Star Fox Adventures, similar to how her spacecraft is shaped and named after the CloudRunner tribe from that game.

According to Takaya Imamura in a 2011 Nintendo Dream magazine interview, frogs in the Lylat System are born as tadpoles and remain as such until they're a month old. He even explains that Slippy and Amanda's baby seen in the "Slippy's Resolve" ending in Star Fox Command was one month old already, hence why it appears as a frog. Imamura would later illustrate this fact in comic form to commemorate the release of Star Fox Zero.

On the Japanese website for Star Fox 64, Slippy mentions certain background characters who would appear in future installments:

• Peppy's wife, Vivian Hare. According to Slippy, Peppy took her to planet Zoness for their honeymoon, which explains why Peppy is so distraught at its polluted status in SF64. Vivian would appear in-game for the first time in Star Fox Command, where it's revealed that she and Peppy had a daughter named Lucy, and that Vivian had died of a disease several years prior.

• Slippy's father, Beltino Toad. According to Slippy, Beltino works as an engineer for Space Dynamics, the manufacturer of the Arwing and many of the other vehicles the Star Fox team utilize. Beltino would later appear in-game for the first time in Star Fox Assault, and would later appear in Star Fox Command.

It's worth pointing that unlike Vivian, Beltino was mentioned in western ancillary SF64 material, that being both the official western Star Fox 64 website and the Star Fox 64 Official Player's Guide, where it states that he helped his son Slippy create the Blue Marine.

Takaya Imamura, who was in charge of Star Fox Command's characters and storyline, originally wanted to do a single linear narrative similar to the campaign in Star Fox Assault. Dylan Cuthbert, the game's director (and previously the programmer for the SNES Star Fox games), convinced him to turn it into a branching storyline with multiple different pathways and endings. According to Cuthbert, this approach was inspired by old 'Choose Your Own Adventure' books, such as the "Fighting Fantasy" series.

Katt Monroe, a female feline character who first appeared in Star Fox 64, had undergone a notable change in appearance from that game going into Star Fox Command, most notably now having black fur instead of pink. According to Takaya Imamura in a 2011 Nintendo Dream magazine interview, he changed her appearance to be more "fashionable".

Prior to Star Fox Zero, there were two attempts in previous installments to revitalize the concept of the Walker from Star Fox 2, or at least the idea of the Arwing transforming into a robot form, those specifically being Star Fox 64 and Star Fox Command, games that both aimed at preserving ideas from the then-long-lost Star Fox 2.

• For Star Fox 64, according to Shigeru Miyamoto in an interview at the end of the Star Fox 64 Official Player's Guide, he wanted to have the Arwing transform into "a human-type craft". This was rejected by other staff members of the SF64 development team. In response, Miyamoto told his team to come up with better ideas, and from there they created the Landmaster and Blue Marine for additional vehicles.

• For Star Fox Command, according to Takaya Imamura in an interview in 2007, the dev team experimented with having the Arwing and other spacecraft transform into robots, but this was ultimately dropped.

Star Fox Adventures primarily takes place on a planet filled with dinosaurs known simply as "Dinosaur Planet". It would return or be referenced in future games like Star Fox Assault and Star Fox Command, as well as "Star Fox Zero - The Battle Begins", a promotional anime released to commemorate the release of Star Fox Zero, but it would instead be referred to with a different name: "Sauria".

It turns out Rare had always intended Dinosaur Planet's real name to be Sauria, as leaked voice clips from the implied climax of the original Nintendo 64 Dinosaur Planet feature the Krazoa mentioning the name as they begin the alignment of the "Majestic Eight" planets to wreak havoc on the universe using the power of their god, the Quan Ata Lachu. An edition of "Ask Uncle Tusk" on Rare's old website revealed Dinosaur Planet's name to be Sauria as well.

The official Japanese Star Fox 64 guidebook reveals that Pigma Dengar, who became a subordinate of Andross, was effectively the real mastermind behind the creation of Star Wolf: he goated and manipulated Wolf into becoming its leader and also working for Andross as a means to combat the newly formed Star Fox team led by Fox McCloud, taking advantage of Wolf's supposed honorable, "magnaimous" side and also his prior rivalry with Fox's father, James McCloud. It is said that he manipulates the entire team behind the scenes in accordance to Andross' orders. It also reveals that Pigma had already been working underneath Andross during his time as a researcher at the Corneria Defense Force Scientific Research Institute. It's also revealed that both Pigma and Andross had custom engineered the Wolfens that the Star Wolf team utilize in their battles against the Star Fox team's Arwings.

In Super Smash Bros. 4, the trophies for Pigma and the Wolfen would reiterate this information, as would the official guidebook for Star Fox Command. The Star Fox 64 Official Player's Guide would similarly allude to Pigma being the root cause of Fox and Wolf's rivalry, claiming that, without his influence, perhaps they could have been friends in another timeline.

There is a target enemy in Star Fox Command known as "Bomber Bird". However, in the Japanese version of the game, it's referred to as サンダーバード (Sandābādo), which translates to "Thunderbird". This is undoubtedly a reference to the Gerry and Sylvia Anderson "supermarionation" television series "Thunderbirds" that inspired Shigeru Miyamoto to create the Star Fox series.

According to the official Japanese guidebook for Star Fox Command, the Solar Satellite boss fought on Solar was originally created by a scientist within the Anglar Army named "Genome", who reportedly developed it in secret using solar energy. This character does not appear anywhere in-game.

Star Fox Command's director and long time series collaborator Dylan Cuthbert wanted to include more traditional rail-shooter stages in this title, but Shigeru Miyamoto was adamant that the development team stick with all-range stages for the majority of the game. According to Cuthbert, this was part of Miyamoto's 'Star Fox should explore new things' initial direction on the project, as he wasn't interested in it just being a copy of the first Star Fox game on SNES, or Star Fox 64.