Lead writer Greg Farshtey has said that the Vahki are his least favorite characters in the series. He is also not fond of writing characters who speak Treespeak. Vakama's out-of-character FaceHeel Turn, which he had no say in, reportedly made him mad since he would have chosen Matau instead.
According to Farshtey, Bob Thompson (the original head of the story team) disliked the Exo-Toa set and asked the writers to diminish its role in the story.
Characters to write about: Kopaka, Vezon, and Teridax.
Book: BIONICLE Adventures 10: Time Trap, which reimagined Teridax into the character he is now.
Dark Hunter: Lariska
Barraki: Takadox, whose personality was based on a character called "East" from one of his earlier novels.
2007 Matoran: Sarda
2009 Character: Malum
Set: he likes big and complex sets, but named his favorite as Karzahni (8940) because it represents a character that he created by himself.
Bob Thompson's (the former head of the original creative team behind BIONICLE) favorite characters were on the dark side Roodaka and on the light side Matau.
Toa Nuva Lewa (in his 2008 "Phantoka" form) was comic artist Leigh Gallagher's favorite character to draw.
Early Draft Tie-In: Preliminary names for the Rahaga sets: Norik was "Tahkon", Iruini "Lahka", Bomonga "Nuukor", Kualus "Kuuls" and Pouks simply "Puks". The original names can be seen on the backs of the sets' instructions, which were for some reason never edited.
Executive Meddling: Averted with the first movie. A number of companies were approached by Lego, but said companies insisted on having the plot involve a human kid in the world, as they thought that would appeal more. Lego instead listened to Greg Farshtey, who hated the idea, and kept looking until they found a company willing to work without human characters.
Word of God says it was played completely straight with 2005, however. Most of the decisions made in that arc, including Vakama's betrayal were completely out of his hands and he disagreed strongly with them.
Fandom Life Cycle: Almost got as high as Stage 4, but reverted to 6a almost immediately after the line's initial cancellation.
"Olda" for the Toa Nuva pre-transformation, before "Mata" was established as their team name.
Nearly every wave of Matoran sets had a nickname that fans used. For example, "McToran" for the original Tohunga; "MoLtoran" for the Mask of Light Matoran; "Metruan" for the Metru Nui Matoran; "Voyatoran" and "Doomtoran" for the Voya Nui Matoran; "Mahritoran" for the Mahri Nui Matoran; and "Kardatoran" or "Avtoran" for the Karda Nui Matoran.
Lime Plastic Syndrome, the tendency for the joints of lime parts from '07 to crumble frustratingly easily. Its name stems from Gold Plastic Syndrome, an equally infamous (yet more persistent) toy plague. One podcast named themselves after this.
Word of God is that Zirahk was proposed as a name for the Rahkshi of Heat-Vision, so some fans have used that name in lieu of the generic species title. Alternatively, as a reference to SPIRIT's Public Service Announcements (specifically, the Burn Stuff PSA), other fans have taken to calling the Rahkshi of Heat-Vision "Samuel L. Jackson".
"Umarak" is often used for The Shadowed One after the second generation of BIONICLE, as the character of Umarak is known as the Hunter of Shadows.
"Mistake-a" from fans who felt the Mistika wave of canister sets from 2008 were a misstep design wise.
When the My LEGO Network BIONICLE Campaign was first launched, the tribe of the Hero Agori was not identified. A poll was later held on BZPower to decide the tribal affiliation of the Agori, and Fire received the highest number of votes.
"Nektann" was originally the name for turrets the Piraka used. When a warlord of the Piraka's race was introduced, a fan suggested that the turrets were named after him, and Greg approved it as canon.
The Other Marty: Toa Lhikan has a distinctly different voice in the trailer for Legends of Metru Nui than he does in the actual movie. It's doubtful that it was a placeholder, as all the other voices in the trailer are the same.
Pop Culture Urban Legends: Voriki, Toa of Lightning. In 2001, there was a contest to create a BIONICLE fan website. Voriki was the product of one of those websites, which set up a very elaborate backstory for a seventh Toa named the Toa of Energy. The site went mostly unnoticed until hints of an actual seventh Toa started to emerge; fans rediscovered the website and assumed it was a teaser, but needless to say they were quickly proven wrong. Voriki has become something of a minor meme to the BIONICLE fanbase.
Postscript Season: The web serials continue on past the toyline's cancellation and the main storyline's conclusion in Journey's End. These serials use ideas that were originally meant for the main story before its abrupt cancellation, such as characters being stranded on Bota Magna, and characters searching for the Great Beings.
Refitted for Sequel: BIONICLE Chronicles 1: Tale of the Toa was the first publication to show the Toa's battle with the Shadow Toa; this battle was originally going to be shown in the canceled PC game, BIONICLE: The Legend of Mata Nui.
The Naming Day concept was created by The LEGO Group when they were requested to change the names of several characters to avoid a lawsuit by the Maori people, who were angry that The LEGO Group was using words of their language. Some of the names changed were not from the Maori language, but rather from different Polynesian languages.
Carapar only possesses one claw in the set, despite having two in the story. Greg Farshtey once said he can remove one claw in order to hold his Squid Launcher.
The original trilogy movies took great liberties with the toy designs by making their biomechanical characters more organic, more "bio" — they were given hands, mouths, muscles, and in the female's cases, a dose of Adaptational Attractiveness. However some ended up only just very, very vaguely resembling their sets. Now, for the fourth movie, The Legend Reborn, they decided to go the opposite route: making the characters extremely toy-accurate. Ridiculously toy-accurate — some even retained the color-scheme ruining red connector rods. Ironically, the people in this movie were really supposed to be organic creatures with some minor mech-implants. Note that there is a lot of leeway. Many design traits could be interpreted in a myriad of ways. An interesting case is that of Roodaka's "braids": rendered as strands of robotic hair in the movie, as tusks that moved together with her jaw in a video game, and as upward-pointing horns in the comics.
Makuta in his set form wore a double-faced mask — his mask in The Movie didn't resemble either. So when the figure got re-released as part of the special edition Takutanuva set, it came with a special, movie-edition mask which had one of its faces re-sculpted to look like the movie design. This is in contrast to the "Ultimate Dume" exclusive set that came out the following year, whose special mask was designed to go with the figure's aesthetic, which already looked absolutely nothing like Makuta's look in that year's movie.
Greg Farshtey wrote parts of the first comic issue out of fun and then turned them over to his higher-ups. Turns out they didn't have anyone else to write the thing, and as they needed to print the issue as fast as possible, they hired Greg immediately.
The front and back of BIONICLE: Dark Hunters feature Keetongu and the Vahki, respectively. This was due to a printing error by Scholastic. However, the Keetongu error was retconned and explained by Greg Farshtey that it may have been a Dark Hunter "who had some sort of chameleon power" and "appeared as a one-eyed yellow Rahi" in The Many Deaths of Toa Tuyet. The Dark Hunter was later confirmed to be Triglax. The Vahki on the back of the book were explained as well: the Dark Hunters at some point captured some and changed their command to serving them.
Flip Flopof God: Greg originally planned to make Helryx leader of the Order of Mata Nui's predecessor (Hand of Artahka) as well, but after Swamp of Secrets said this was not really the case. Since then, he reserved the right to change his mind on anything not explicitly stated in canon.
Working Title: Boneheads of Voodoo Island and Doo Heads were both used during the theme's development (notably, the internal names for many early BIONICLE pieces are called "Voodoo Claw", "Voodoo Hook", etc.), but the title B4 was also considered.
Writing by the Seat of Your Pants: Farshety has said this is his preferred writing style, at least for the web serials that aren't as connected to the main plot threads.
Farshtey's ex-wife, Jackina, commonly assisted Greg with the BIONICLE story podcasts in offering her voice for the female characters, such as Hahli and Tuyet.
The main BIONICLE logo is an image of the Three Virtues.
The Spherus Magna system is in the shape of the Three Virtues' symbol.
The Kanohi Kaukau was the only of the Toa Mata's Kanohi to have its design computer-generated by set designers—the rest were done by carvings.
Set-wise, the Kanohi Pakari is the most frequently used Great Kanohi, while the Ruru is the most frequently used Noble Kanohi.
The term "Toa Mata" was officially coined after 2001-2002 story arc took place to prevent confusion. During this time, they were simply known as the "Toa" because they were the only Toa ever seen in the story at the time.
Kopaka was the first BIONICLE character portrayed in the comics.
The phrase "play well", LEGO's slogan and meaning of the company's name, is used in Kolhii.
The USA today made BIONICLE Adventures 1: Mystery of Metru Nui #150 on their best-seller list. According to Greg Farshtey's Blog, it is the best selling BIONICLE book.
A special sponge version of the Morbuzakh was released alongside a German BIONICLE magazine.
The Great Kanohi Ruru in Hordika form was the first Hordika head to be seen by fans (through the DVD version of Legends of Metru Nui), although it was white and belonged to a prototype Toa Hordika Nuju set.
The Piraka.com is based in the Piraka Stronghold.
The music playing in the Toa Inika toy commercial is "Move Along" by the All-American Rejects, in accordance with the Free the Band promotion.
A lawsuit was filed against The LEGO Group when a 2-year-old girl was frightened by a Toa Inika commercial, but LEGO won.
In 2007, the BIONICLEStory.com was set inside the Toa Terrain Crawler.
The second Mask of Life code for Command Toa Matoro is former BZPower administrator and former BIONICLE.com Webmaster, Kelly (AKA Binkmeister's) initials. This was done as thanks to all the work he had done to the site.
Gavla's immediate mutation upon becoming a Shadow Matoran was a case of artistic license on the part of the author. In actuality, Mutran would have altered her later.
The Axalara T9 won the French "Grand Prix du Jouet" ("Toy Grand Prize") award in 2008.
Greg Farshtey used Teridax's name as one of his World of Warcraft character's names. He later deleted the character.
Takanuva's possession of his Power Lance and Midak Skyblaster at the time were simply due to artistic license. The book could not be approved without Takanuva resembling his set counterpart, and thusly the weapons had to be included. He did not actually obtain them in the official canon until after the events of The Journey of Takanuva.
Skirmix was named by former BIONICLE.com webmaster Kelly McKiernan.
Nektann's weapon was designed by Kelly McKiernan, webmaster for BIONICLE.com. He was originally intended to have two, but the final set only included one.
The first mask piece to be designed was the Vahi, Mask of Time. It is unique in that it covers only the bottom part of a face, as opposed to almost all other masks, which conceal the entire face. Despite being the oldest, it's not easy to acquire — the piece was to be packaged together with the canceled Legend of Mata Nui PC game, and was later part of a number of promotions or exclusive sets, but these weren't available globally.