In the original Dinosaur Planet, Krystal would come across a pachycephalosaurid dinosaur at CloudRunner Fortress, who is revealed to be one of the SpellStone guardians, who also gives Krystal the Illusion spellpage to bypass the SharpClaw guards within the dungeon. In-game hints and task summaries reveal him to be of the "BoneHead" tribe.

This individual would appear in the final Star Fox Adventures, with his role slightly rewritten as the chief engineer at CloudRunner Fortress (The Queen CloudRunner took over his original role as the SpellStone Gatekeeper for this area). Talking to him in a cutscene will reveal his name to be "Gradabug". While not mentioned anywhere in-game, the Star Fox Adventures Nintendo Power guidebook reaffirms him belonging to the BoneHead tribe.

While the Brain Squids that float around in Krystal's opening prologue segment at Krazoa Palace are often thought to be the only common enemies in Star Fox Adventures that she can kill (as she is otherwise stripped of her staff and imprisoned at the top of the palace for the rest of the game), it's actually possible for her to kill a SharpClaw during this segment. The player will need to grab a barrel from the hallway before the flame jet room and place it on the pressure plate in the room after the jets, letting Krystal use the barrel generator in that room for a free barrel. After grabbing that barrel, the player will need to run over to the lift, and once they're in the next hallway, they'll have to go left to the watery barrier, opposite of the Krazoa head where the player normally deposits their Krazoa spirit. From there, if the player waits long enough, a SharpClaw will patrol right by on the other side of the barrier, and from there Krystal can throw her barrel on top of him, immediately destroying him.

The floating planetoid representing CloudRunner Fortress on the world map screen in Star Fox Adventures very clearly resembles its original, rockier iteration from the Nintendo 64 version of Dinosaur Planet, as opposed to its remodeled look in the final Star Fox Adventures.

A rendition of Star Fox 64's Area 6 theme can be listened to in Star Fox Adventures' sound test, despite it being otherwise unused in the final game. In a January 10th, 2003 edition of Rare's Scribes, composer David Wise explained that the Area 6 theme was temporarily used as the theme for the final confrontation against Andross, but was always intended to be replaced with the music that plays there now in the final game, which is a rendition of Andross' battle theme from Star Fox 64. According to Wise, this track was literally substituted in the final hours of development, and Rare did not have time to remove it from the final version.

Star Fox Adventures' Japanese localization marks the first and only instance of the Star Fox team's robotic operator, ROB 64, actually being referred to as such in-game (at least through the Japanese subtitles) by his teammates (ロブ), as opposed to by his usual Japanese name, NUS (ナウス). This also occurs in Farewell Beloved Falco, the Japan-only manga prologue to Star Fox Adventures.

The Farewell Beloved Falco manga introduces a new member of FREE AS A BIRD, a blue feline character named Kool. The climax seems to imply that Kool and Katt Monroe have romantic feelings for one another, with Falco Lombardi looking on in approval.

Kool wouldn't appear again after this, and Katt would go back to following Falco in certain story routes in Star Fox Command. When asked about Kool's whereabouts by Nintendo Dream staff in 2011, Takaya Imamura responded with:

Found within the files of Star Fox Adventures is an unused audio track for the WarpStone's introduction cutscene, which also includes verbal dialogue. This was clearly an earlier version before Rare had done a voice-acting retake.

Most notably, the music that plays in the background is a remnant from Dinosaur Planet, from the scene where Krystal first arrives in SwapStone Circle and thus meets her respective SwapStone, Rubble. In the final Star Fox Adventures, music performed by bagpipes is played instead in this particular cutscene.

One of the enemies Sabre and Krystal would encounter in Dinosaur Planet were these robotic Scorpion-like automatons, typically found in Krazoa-build strongholds such as the Force Point Temples and Cape Claw. While removed in the final Star Fox Adventures, they could still be found hidden within the E3 2002 kiosk version via hacking.

Originally, going by some of the initial concept art as well as early gameplay footage for Star Fox Adventures, the tip of Krystal's staff was meant to transform whenever Fox performed one of its magic abilities. For example, when Fox performed the Ground Quake ability, it'd transform into a hammer. Curiously, one of the pieces of concept art mentions the staff transforming into a wing tip to give Fox the ability to glide, which goes unused in the final game. The models for these staff transformations were also found within the E3 2002 kiosk version of Star Fox Adventures. Ultimately, this went unused in the final game.

Found within the E3 2002 kiosk version of Star Fox Adventures is an unused cutscene of Fox talking with Tricky, Peppy and Slippy after placing presumably the final SpellStone. Various unused SFA voice clips sync up perfectly with this sequence, revealing the dialogue exchange to be:


This presents bit of a different story from what is presented in the final game. In the retail release, it's discovered that returning all of the SpellStones to the Force Point Temples does not single handily restore Dinosaur Planet to its original state, and that Fox also needs to return all of the Krazoa spirits to Krazoa Palace to fully stabilize the planet, in addition to freeing Krystal from Krazoa Palace.

Here, it does seem returning the SpellStones restores the planet, and collecting the Krazoa spirits is for a separate task, that being merely freeing Krystal.

What exists as LightFoot Village in Star Fox Adventures was originally merely a subarea in a greater location known as SwapStone Circle in Dinosaur Planet. This was essentially Krystal's equivalent to Sabre's SwapStone Hollow, acting as a hub for her adventure and thus connecting together her stages such as Cape Claw, BlackWater Canyon, Discovery Falls, Golden Plains and Moon Mountain Pass. It was also where she'd utilize her namesake SwapStone, Rubble, to transport to Warlock Mountain to deposit Krazoa spirits.

In the transition to Star Fox Adventures, when it was decided to scrap Krystal's co-protagonist role, thus leaving Fox as the only playable character outside of the prologue, Krystal's stages were either removed entirely or given to and reworked for Fox. SwapStone Circle as such would be heavily revamped, expunging the SwapStone element and heavily expanding the LightFoot Village mini-area into its own full distinct location. Similarly to Dinosaur Planet, the area would link to Cape Claw. It's worth noting that within the game files, LightFoot Village is internally called "SwapCircle", as ThornTail Hollow is similarly internally called "SwapHol", referencing their original names.

In Dinosaur Planet, Krystal and Kyte were tasked by the LightFoot to lit their ancient beacons that had gone out. Doing this in turn would reward them access to Discovery Falls. This quest would appear in the final Star Fox Adventures, but re-contextualized as the ThornTails in ThornTail Hollow asking for Fox and Tricky for help in reigniting their beacons, and doing so rewards them a key that let them access Moon Mountain Pass, as well as the Volcano Force Point Temple.

What exists as ThornTail Hollow in Star Fox Adventures was originally called SwapStone Hollow in Dinosaur Planet. It more or less functioned the same as it does in SFA, serving as the hub for Sabre's adventure, connecting his stages such as SnowHorn Wastes, Walled City, Diamond Bay, Willow Grove and Dragon Rock. It was where he'd utilize his namesake SwapStone, Rocky, to transport to Warlock Mountain to deposit Krazoa spirits.

ThornTail Hollow retains most of the same layout, but has noticeable differences: the shop that was originally situated underneath the SwapStone (now WarpStone, as the character swapping mechanic was dropped with Krystal's co-protagonist role scrapped) is now its own distinct establishment settled in the middle of the map. The winding series of tunnels right by the Swap/WarpStone has been replaced by the Mother ThornTail egg mini-game. The areas it was originally connected to such as Willow Grove, Walled City, Diamond Bay and Dragon Rock were either entirely removed or split off the mainland Dinosaur Planet in orbit. ThornTail Hollow also now leads into Moon Mountain Pass on the right side of the area, and what originally led to Willow Grove in the bottom left now leads into LightFoot Village.

Golden Plains was another of Krystal's stages in Dinosaur Planet that was cut in the transition to Star Fox Adventures. It was an open desert area that Krystal and Kyte would have to trek through in order to reach the Desert Force Point Temple. It would be home to other interests, such as the spell page for the Portal ability required to open the way into the Desert Force Point, another jetbike race, and as well as Krystal's final Krazoa shrine test, the Test of Knowledge.

Golden Plains featured a unique mechanic in that Krystal would take damage by vising this area during the day because of the extreme heat, hence why the SpellStone guardian previously encountered at CloudRunner Fortress (who appears in Star Fox Adventures under the name of "Gradabug") warns her to instead travel at night when the sun is gone.

Golden Plains was removed in the final Star Fox Adventures, but some of its elements would remain: the Desert Force Point Temple was reworked into the Ocean Force Point Temple and would be now accessed through Cape Claw. The Ocean Force Point would even inherent Golden Plain's original background music. The Test of Knowledge would be moved over to the top of the temple in the Walled City and fittingly enough would be Fox's final true Krazoa test, although one more was planned in place of the General Scales "boss fight" in Krazoa Palace.

One of Krystal's many areas from Dinosaur Planet that got scrapped in the transition to Star Fox Adventures was Discovery Falls, which consisted of a massive series of waterfalls and hidden caves. This was the first area that Krystal was meant to visit after rescuing Princess Kyte from the SharpClaw within Cape Claw, and was also home to her first Krazoa shrine test, the Test of Combat. Other notable characters encountered here include a member of the HighTop tribe (a race of sauropods), a friendly SharpClaw that teaches Krystal the Foodbag mechanic, and a mysterious mole creature that Krystal must feed in order to to help her dig additional tunnels within one of the caverns. This mole creature, internally referred to as "DFmole" in the game files, has been affectionately named "Capy" (short for "capybara") by some within the Dinosaur Planet community. This area was also where Krystal would eventually acquire an artifact of the Krazoa that would let her access more areas previously barred off in Cape Claw.

As mentioned before, this area would be scrapped entirely in the final Star Fox Adventures game, but some elements of it would live on elsewhere, namely the Test of Combat (which now exists in Moon Mountain Pass, fittingly as Fox's first test) and its background music, which now plays in Cape Claw, and was also remixed in romantic saxophone form as Krystal's theme.

Found within the files of the E3 2002 kiosk of Star Fox Adventures is a file called STORYBOARD.bin which reveals a set of storyboard images pertaining to a cut subplot in Dinosaur Planet's CloudRunner Fortress that would have dealt with Princess Kyte's traitorous uncle.

It seemed for two centuries, Kyte's uncle had been cast out by his tribe and now was seeking vengeance by allying himself with General Scales and the SharpClaw. It appears that Krystal and Kyte would combat and defeat this evil uncle, resulting in General Scales betraying him, and in retaliation, Kyte's uncle would attempt to perform a kamikaze attack on Scales and thus sacrifice himself.

While the storyboards otherwise are mostly similar to what is presented in the Dinosaur Planet condensed story and also leaked December 2000 build, there are some notable differences, just to name a few: as Krystal and Kyte enter CloudRunner Fortress, they witness a CloudRunner soldier get killed by one of the SharpClaw's spaceships (presumably provided to them by Drakor). The imprisoned SpellStone guardian, presented as a pachycephalosaurid type dinosaur from the BoneHead tribe in the leaked Dinosaur Planet build (who also appears in Star Fox Adventures with the name "Gradabug") is illustrated as more of a strange stegosaurid type of dinosaur here.

It's rather apparent that these storyboards were meant to pertain to a subarea within CloudRunner Fortress that had already been scrapped by the time of the condensed Dinosaur Planet story and also leaked build: the Trap Rooms, which would of featured an extra set of puzzles and challenges Krystal had to solve before acquiring the area's SpellStone. The storyboards show that the Trap Rooms were to be accessed through the underwater passage in the Fortress' main courtyard, which in the leaked build, instead leads to the jetbike race (in the final Star Fox Adventures, Fox accesses it through the CloudRunner's treasure rooms. Funny enough, Adventures' CloudRunner Fortress also has a scrapped area found beyond the Fortress' flooded courtyard pathway). It is worth pointing out that the March 1999 level list includes "CloudRunner - Treasure", "Dungeon", and "TrapRooms", but doesn't feature "CloudRunner - Race", which makes it all the more apparent the latter replaced the Trap Rooms in the December 2000 build, which would then carry over into Star Fox Adventures.

The original Dinosaur Planet storyline had Sauria, the namesake Dinosaur Planet, a part a group of eight planets dubbed the "Majestic Eight". Said to be the first planets created when the universe began, the seven other were, as described by the Krazoa:

• Animus, the home world of Sabre, Krystal and Randorn
• Aleminach, the home world of the Krazoa
• Eridal, the home world of Drakor's race, the Kamerians
• Nibiru, the home world of the "Nephilim", and "a land of giants"
• Earth, the home world of the "newest universe members, a very evil race, the humans"
• Melqua, a planet of water with rings of gold
• Selaf, the home world of the "Anunnaki"

Interestingly, in place of Animus, the voice lines for the Krazoa in Warlock Mountain instead mention Corneria. Obviously, this was to accommodate the presence of Fox McCloud in the leaked December 2000 build of Dinosaur Planet, as it was beginning to transition into Star Fox Adventures.

Some of these reference actual myths and conspiracies, such as the Nibiru Cataclysm, a doomsday theory that states that Earth will catastrophically collide with another planet, typically believed to be an object known as "Planet X" or Nibiru. The "Annunaki" are a group of deities in ancient Sumerian myths that are theorized by some as aliens from a planet called Nibiru that came to Earth to harvest gold, and also were reptilian humanoids. The myths surrounding the "Nephilim" tend to vary: some say they were giants (as mentioned by the Krazoa in DP) while others say that they were fallen angels or the offspring of humans and angels.

Each of the eight spirits Sabre and Krystal were told to collect by the Krazoa during their adventures were meant to represent these eight planets. The ultimate endgame of the Krazoa in Dinosaur Planet's original narrative was to align these Majestic Eight worlds by reuniting the eight spirits of Quan Ata Lachu (a deity the Krazoa worship) at Warlock Mountain in order to revive their people and bring "peace" to the universe. In reality, as Drakor describes it, this will result in the most deadly weapon in the universe, as the alignment of the Majestic Eight gives the Quan Ata Lachu (described by Drakor as being "a rare lifeform of pure evil") the opportunity to utilize the immense powerful energy that this will produce, and it will be focused through Warlock Mountain, creating the ultimate weapon of destruction that will allow the Krazoa to remold the universe into their image/liking, spreading disease, terror and chaos as they please. This is why Drakor has come to Sauria to revive the Kamerian war dragon that fell in battle against the Krazoa at the beginning of the universe, to prevent this from happening and exact revenge against the Krazoa.

This plotline would be revised and ultimately dropped in the final Star Fox Adventures game, as Dinosaur Planet is said to just simply exist in the Lylat System, and Krystal's home planet was renamed to Cerinia and was said to be mysteriously destroyed, hence why she's searching the galaxy for the truth of the death of her family (though this was omitted in the Japanese version). The plotline of Fox collecting the Krazoa spirits in promise of something good (in this case, saving Krystal from the top of Krazoa Palace and ultimately putting Dinosaur Planet back together) would in someway remain, but would instead result in Andross reviving himself as the true final boss of Star Fox Adventures.

Cape Claw is another area that was considerably larger and more complex in Dinosaur Planet than it was in the final Star Fox Adventures.

Both versions of the stage include the same starting point, a beach/cliff area with a giant Krazoa head structure, but unlike in Star Fox Adventures, the gas room puzzle in the cave was blocked by a BribeClaw (called "GuardClaw" in Adventures) that Krystal needed to bypass by giving him shiny nuggets, which allowed her to partake in the aforementioned Poison Chamber puzzle. This would actually unlock the way to a massive SharpClaw fortress area, featuring a wide cliffside and a mountable cannon, which was to be used to blast away the metal doors on the left and right of its placement, allowing Krystal to enter Cape Claw's courtyard. This is where Krystal would free Princess Kyte, who would then accompany her for the rest of her campaign. By having Kyte perch on a series of levers, the towers surrounding the Courtyard would reveal a pair of torches which would need to be lit by Kyte's Flame command, which would open the way back to the entry way, letting Krystal and Kyte leave Cape Claw only to have a run in with the LightFoot tribe in SwapStone Circle.

Krystal and Kyte would have to later revisit Cape Claw after acquiring an artifact of the Krazoa found in Discovery Falls (another of Krystal's areas that was removed in Star Fox Adventures), which would allow them to access even more areas, such as Cape Claw's Village section. They'd first need to collect three Fire Gems hidden around the area, one of which requires defeating a mini-boss encounter with the Sand Snake enemy. They would also encounter a pair of robot scorpion enemies hidden within a cave in the Village area, discovered by detonating explosive barrels, where they would be rewarded with another Krazoa tablet after defeating them. Afterwards, they would place the Fire Gems they've found inside their Lighthouse Beacon counterparts, and once they've been lit, or a Krazoa tablet has been placed, the Courtyard Well will reflect this change and unlock further areas of CapeClaw.

This was where Krystal would come across another Krazoa shrine, which housed the Test of Character, which would pit her against an apparition of Sabre (or Fox in the leaked December 2000 build of Dinosaur Planet), who taunted her by claiming he never trust her and that Randorn should have left her to die with her tribe when he found her, and that now he must finish her off, perhaps as a way to foreshadow the truth about Randorn and her parents, while hinting at Krystal's inner fears of abandonment or betrayal. Krystal would have to fight this illusion and then be given the choice to spare or finish him off, and the former was the only way to pass the test and acquire the spirit.

Krystal and Kyte would make their third and final visit to Cape Claw after Sabre acquired the sixth spirit, which would open the mouth of the giant Krazoa Head. Going by the condensed story, they were to discover hidden caves containing a Krazoa translator, which allows them to read the ancient texts that have seen throughout their adventures and help open the gate into the Krazoa Palace, Krystal's final SpellStone dungeon.

Pretty much all of this would be entirely removed in the final Star Fox Adventures. The initial beach/cliff area with the giant Krazoa head would remain, as would the gas room puzzle, but solving the latter would only free the Queen CloudRunner (filling in for Kyte) from her prison within a nearby cave, and the Krazoa head would now lead into the Ocean Force Point Temple. There also exists a sidequest involving a finding a HighTop's stack of gold.

Curiously, the Dinosaur Planet globe map made for Star Fox Adventures does actually include the SharpClaw fortress area, which possibly indicates that Rare had intended on bringing Cape Claw in its entirety over to SFA before heavily cutting it down.

Diamond Bay, along with Willow Grove, was one of the precious few areas from Sabre's campaign from Dinosaur Planet that ended up being scrapped entirely in the final Star Fox Adventures. A massive coastal area with cascading water falls, Sabre (or Fox in the leaked Dinosaur Planet build) and Tricky would access this area by swimming down the river in SwapStone Hollow.

This was the original home of the Volcano Force Point Temple. It was also home to a single, seemingly last standing member of the PointBack tribe, a race of Stegosaurs. This individual would help Fox/Sabre by providing them the key to access the Volcano Force Point Temple, and would provide them with different tasks every time they returned from Diamond Bay with a SpellStone, such as preventing her eggs and nest from being raided by thieves, or being swept away by a flood. Completing each of these tasks would reward Sabre another key into the Force Point Temple.

It was also home to Sabre's first Krazoa shrine test, the Test of Strength. After depositing his first SpellStone, Sabre would be able to find a pathway that leads to a temple containing this shrine that was being guarded by a group of floating droids.

Diamond Bay was completely removed in the final Star Fox Adventures, and the Volcano Force Point Temple and the Test of Strength would be relocated to Moon Mountain Pass and SnowHorn Wastes respectively. Though absent in the final game, early design documents and concept art indicate that Rare did plan on bringing the PointBack back, but relocated to ThornTail Hollow (originally SwapStone Hollow).

It is worth pointing out that in the final game, there exists a mother ThornTail whose eggs and nest are similarly being raided by thieves and thus requests Fox for help. Bumping the contrast on Kevin Bayliss' early Star Fox Adventures cutscene sequence document reveals "The PointBack's eggs" on the next page, which makes it clear that this role was originally intended for the PointBack before she was dropped entirely in favor of the ThornTail.

In the E3 2002 Kiosk version of Star Fox Adventures, CloudRunner Fortress contains a handful of elements from the Dinosaur Planet version that got scrapped in the final game, some of these being:

• The level is set on a stormy night in this version of the game, just like in Dinosaur Planet. The weather changes to daytime in the later areas of the fortress after Fox is captured.

• Certain sections of the stage use the "Sound Test 09" and "Sound Test 28" music tracks which go unused in the final version of Star Fox Adventures outside of the jukebox. Both music tracks were originally composed for Dinosaur Planet, and one of which is played while Krystal makes her approach into its version of CloudRunner Fortress.

• Interactive Krazoa-pattern-framed info screens appear throughout the fortress, which are also in the N64 version. In Dinosaur Planet, these info screens would provide advice and also occasional lore, one of which mentioning the Kamerian Dragon, which the CloudRunners thank for providing their wealth.

Curiously, the demo contains an unused map of the interior of General Scales' galleon separate from the one used during the intro. Its internal name is "insidegal"; Dinosaur Planet also has this map and it can be visited while the galleon is docked at the back of CloudRunner Frotress, which makes it seem that General Scales' galleon was at one point planned to appear here in Adventures, too. In 2024, an account named
Jeebs' Game Shack was finally able to access "insidegal" (as well as various other older SFA maps that seem to be circa mid-2001), fully confirming this to be the case. Hidden warp zone objects exist floating where the lower deck doors would be positioned if the ship was docked there, even in the retail version.

The Kamerian Heart was the original intended boss fight for Dragon Rock in Dinosaur Planet. It represented the Frankenstein remains of the last great Kamerian war dragon that fell in battle against the Krazoa over Dinosaur Planet's orbit, and became something of a god figure to the dinosaur inhabitants, who believed that they were spawned from it. One of the dragon's descendants, Drakor, becomes aware of its presence on Dinosaur Planet and seeks the assistance of General Scales and the SharpClaw to take over the planet and begin channeling all of its magical energies into the Kamerian Heart within Dragon Rock using the Force Point Temples, in order to revive it and thus allow Drakor to use its huge destructive powers to destroy the planet and seek vengeance against the Krazoa, as well as conquering the entire universe. Inside the Kamerian Heart was where the area's SpellStone resided, and thus Sabre had to defeat the heart in order to acquire it, and after an encounter with Drakor, would need to escape from within Dragon Rock before he is trapped there forever.

The Kamerian Heart is noticeably the only boss fight present in the leaked December 2000 build of Dinosaur Planet to be entirely absent in the final Star Fox Adventures. Drakor, whose role was repurposed as General Scales' mutant bioweapon, would take over its role as Dragon Rock's boss that Fox must defeat in order to obtain the SpellStone. In turn, Andross would take over Drakor's role as the final boss of Star Fox Adventures.