Your Guide to Bionicle

• Zivon

A Zivon is a large Rahi created by the Brotherhood of Makuta that lives in the Field of Shadows and can only be summoned by the Kahgarak’s Rhotuka spinners. The Zivon is summoned whenever the Visorak hordes need a walking powerhouse of unstoppable force. Not that the hordes would like to see Zivon any more than they have to, though. Zivon fights only to protect its main food source, namely the spider creatures. The Zivon’s idea of a victory celebration often involves eating half its “allies,” and the Visorak understandably hate and fear this monster.

History

The only known specimen of Zivon was summoned to the ruined city of Metru Nui by Sidorak shortly after the Great Cataclysm, in an effort to destroy the Toa Hordika once and for all. It was thwarted by the appearance of a Tahtorak and the shapeshifting Rahi named Krahka; during the climax of the battle, a Kahgarak sent a Rhotuka spinner at Tahtorak, but Krahka rammed herself into the Zivon, forcing all three of them to be in physical contact when the spinner struck; as a result, all three were sucked into the Field of Shadow. A thousand years later, Krahka and Tahtorak escaped when Brutaka failed in his attempt to send Axonn into the Field; Zivon’s status, however, remains unknown.

Abilities and Traits

Zivon is well over 30 feet (9 meters or 6.66 bio) tall and has been described as looking “like some obscene hybrid of a Visorak, an Ussal crab, and who knew what else.” With a pair of powerful mandibles; two large claws; four Rhotuka spinners mounted on its head, back, and claws that cause blindness, deafness, muteness, and numbness; six legs that can shoot webbing to entangle foes; and a tail-mounted stinger powerful enough to penetrate even the thick hide of a Tahtorak.

• Waikiru

Waikiru are aquatic Rahi whose agility when swimming is in sharp contrast to their slow and awkward movement on land. They use their tusks to defend themselves from threats such as Takea when escape by swimming is not an option. If treated with care they are gentle towards Matoran, but if threatened they may charge, posing a formidable danger.

On Metru Nui, Waikiru could be found along the Ga-Metru shoreline.

• Water Wraith

Water Wraiths are small marine Rahi created by Teridax. They are extremely tiny compared to other fish-like Rahi living underwater, and as such are ignored by most other aquatic Rahi looking for food. To hunt for a meal itself, the Water Wraith has a unique and deadly tactic. It will occasionally assault a much larger Rahi, which inevitably defeats the puny creature and gulps the small Rahi into it’s mouth. However, the Water Wraith has a powerful physiological adaptation, which coats the outer shell of its body in poison. As the bigger beast soon finds out, it has made a fatal mistake which kills it almost instantly. After the larger Rahi has died, the Water Wraith escapes back to the outside world and feeds on the dead creature for several months.

• Worm – A small, Kraata-like Rahi that can communicate with others of its species via telepathy. They are also small enough to fit in Bohrok headplates designed for Krana.

• Vahki Hunter

Vahki Hunters feed on any kind of machinery they can find. They have been known to eat Ta-Metru Fire Drones, industrial machinery, Vahki (hence their name) and anything else that is mechanical. The Vahki Hunter’s hunting method is to hide underground and wait for a Vahki squad to pass over its head. It then bursts out into the street, grabs the last Vahki in line, and pulls it down below. Once the Vahki Hunter is done eating, it then throws whatever parts it doesn’t like into the street.

• Vako

The Vako are great horned beasts which roamed the plains of Mata Nui in herds. Even the infected Rahi steered clear of the Vako, which are capable of charging at great speeds. The Po-Matoran attempted to tame the Vako a few times, but without success.

Different variations of Vako have been seen on both Ta-Wahi and Ko-Wahi, each slightly more adapted to their respective enviroments. These Rahi have since migrated from Mata Nui, due to the Bohrok’s activity.

• Vatuka

Vatuka are large and fearsome creatures made entirely out of rock created by the Energized Protodermis Entity.

History

One Vatuka once captured Turaga Whenua shortly before the arrival of the Toa; he was later rescued by Takua.

• Venom Flyer

The Venom Flyers are Rahi that would travel with Visorak squads to neutralize flying targets. Since the Visorak have gone to the island of Artidax, the Venom Flyers have been abandoned by the swarm. Their Rhotuka Spinners cause the inability to fly whether it be by natural or mechanical means.

• Visorak

The Visorak are sapient spider-like Rahi whose name means “stealers of life” or “Poisonous scourge” in their native language.

• Venom Eel

Venom Eels are eel-like Rahi that live in the waters around Mahri Nui.

History

Venom Eels made up the bulk of Barraki Ehlek’s army. They were considered a threat to the Mahri Nui Matoran. Dekar once encountered one during a routine hunt, however, due to his possession of the Ignika. Ehlek led his army of eels to attack Mahri Nui, however, he was convinced by Carapar to stop.

300 Foot Mutant Venom Eel

A Venom Eel was enlarged by the powers of the Kanohi Ignika up to a length of 300 feet (90 meters). It attacked Mahri Nui, attracted by its light and movement, but later changed its course when the Matoran, led by Defilak, smashed the city’s Lightstones, throwing the city into darkness.

The Venom Eel then attacked the stone cord and tried to squeeze it, but was defeated by the Toa Mahri (specifically Hewkii). Later, the Venom Eel battled an Ancient Sea Behemoth summoned by Kongu’s Kanohi Zatth. The two creatures then allied with Gadunka and joined together in fighting the Toa Mahri. The Venom Eel was defeated again by Hewkii, who used his Garai to cut off the eel’s gravity, letting a wave carry it away.

Abilities and Traits

Venom Eels rely on their excellent eyesight, and to lesser extent, their hearing, to hunt. They rely on fast acting venom from their fangs for both defense and offense.

• Unnamed Rahi

We have seen many Rahi in the BIONICLE universe that have been unnamed. These are descriptions of many of them:

Air Rahi

• A cousin of the Nui-Rama, able to throw its stingers.
• A penguin-like bird Rahi that is found in Ko-Wahi that is made completely of snow. It preys on creatures by flying over them, smashing itself down on them, thus flattening itself, but quickly reforming itself and flying back up if another strike was necessary.
• Small flying Rahi which appeared around the sick Po-Matoran in Po-Koro during the Po-Koro Epidemic.
• Organic sea birds which lived on Mata Nui.
• A bat Rahi that Vezon split into two single-winged bats with the Spear of Fusion. Unable to fly, they both perished.

• Teal-colored birds that can be found around the Coliseum in Metru Nui and Kini-Nui on Mata Nui.
• Strange Rahi that fly above the island of Artidax.
• Organic dragonfly Rahi seen in Le-Wahi.
• Bat winged Rahi that are bred for long distance flying. They have been used by the Dark Hunters and the Order of Mata Nui to relay messages to agents in the field.

Land Rahi

• Several multicolored insects that appeared in the Quest for the Toa.
• A twelve-foot high (2.67 bio or 3.67 meter) creature with a slimy pale white body and six long, bony spines coming out of its sides, each spine long and flexible, and each tipped with curved claws capable of tearing through six feet (1.33 bio or 1.83 meters) of solid metal with one swipe.
• A squat, slime-caked creature with cruel blades for hands that, according to witnesses, makes a Toa Hordika look handsome. It can also stretch to twice its size and was a form which Krahka once used.
• A massive lizard-like creature, with the ability to create regenerating crystal. Krahka once transformed into this.
• A tentacled Rahi that seems to be made entirely of smoke.
• A gaseous Rahi Krakha once encountered deep beneath the Archives. She used this form to escape the Great Temple without being noticed.
• A living blob of some gelatinous substance, able to take any physical blow without harm. Krahka once shapeshifted into this.
• A medium-sized Rahi that looks like a cross between a lizard and a Kavinika, with the ability to sense active Kanohi, and screeches when they are used.
• A lizard-like Rahi which was captured by a Visorak in Web of the Visorak and was brought to Roodaka for questioning.

• A purple Rahi with at least one tentacle. One lived in Po-Metru during the Great Rescue.
• A white bull-like Rahi who’s horns can dissolve solid matter. Travels with the Dark Hunter known as “Tracker”.
• Crimson insects that guard an underground bridge on Artidax.
• Unknown Rahi that rescued and tended to Vultraz after the latter fell from a cliff.
• A three-headed, bat winged, brown-scaled creature that lives in the Archives. It is well over 60 feet tall, and is afraid of fire.

Sea Rahi

• Small seahorse Rahi seen in Mask of Light.
• Small red, gray, and tan-colored fish Rahi seen in the Mata Nui Online Game.

• Small, orange starfish Rahi found on the shores of Mata Nui.
• Clam-like Rahi found on the shores of Mata Nui.
• Cone snail-like Rahi found on the shores of Mata Nui.
• The First Rahi ever created.
• An Ancient Sea Behemoth summoned by Kongu’s Zatth.
• Small, piranha-like fish that dwell below Ga-Koro.
• A hypnotizing Rahi mentioned to be in stasis in the Archives.
• Small blue and yellow fish seen in Mask of Light.
• Two types of jellyfish that live in The Pit.
• A species of small, aggressive, rainbow-colored fish with needle sharp teeth that inhabit the waters around Daxia. They usually live in schools.

Experiments/Mutations

• A small scorpion with three stingers.
• A small scorpion with no legs.
• A small scorpion with gills (was found on a rock ledge far from water).
• An insect with a 200-foot wingspan, a mouth filled with metallic teeth, and the ability to flap its wings hundreds of times per second, making a defensive airfield.
• A bipedal creature made from rock (similar to the Vatuka).
• A six-foot long, winged centipede.

• Mutated combinations of Takea and Underwater Rays used by the Barraki.
• A Rahi with “too many legs”, two heads and no tail created by Spiriah.
• A Rahi-Matoran hybrid that Vican rode on.
• A Rahi experiment made by Mutran that would scream and melt into a liquid when agitated. It could also fly.
• Several Rahi in Karda Nui that have been mutated by the waters of the swamp.

• Ussal Crab

The Ussal are herbivorous crab-like Rahi that are extremely common and extremely useful to Matoran.

History

On Metru Nui, Ussal Crabs were used by the Le-Matoran in Le-Metru who worked as Ussal riders, where they hauled transport carts around the city and competed in racing tournaments. Tame Ussals were kept in pens scattered across Le-Metru and were put to work chiefly when a bulky or delicate item deemed unfit for Chute travel needed to be transported. Ussal carts were also used on occasion to carry passengers, although the transportation of bulky cargo was their main application and Ussal drivers were often too busy to pick up other Matoran who flagged them down.

Later, on the island of Mata Nui, they were found all over the island, but were primarily used by the Onu-Matoran. Some worked in digging tunnels like the Le-Koro Highway; others worked in the great Ussalry, led by Onepu. In addition, some were still used in sports, such as the Great Ussal Race and Kolhii. On this island, some Ussal were kept in stables. Not many of the Ussals on Mata Nui were infected by Teridax during his time there.

Mutated Ussal

An excessively large version of an Ussal crab was found in the Metru Nui Archives by Toa Metru Whenua and Nuju. It attacked them viciously, but they quickly determined that it had an aversion to loud noises. Whenua activated his Earthshock Drills to drive it into submission and he defeated it long enough for the two Toa to force it back into its chamber and lock it up.

Its status is unknown post-Great Cataclysm, during which the Archives were shattered.

Rock Ussal

Rock Ussals are extremely well adapted Ussal crabs that are scattered around Voya Nui and came originally from the Southern Continent. They can be found in the Desert of Sorrows, and are considerably more aggressive than the average Ussal. The Rock Ussals on Voya Nui may have not survived the island’s decent to the Southern Continent.

Abilities and Traits

Ussals are very common and they come in a wide variety of colors, including purple and black, blue and yellow, or orange and dark gray. They have an unpleasant odor that makes their dwellings easy to identify from a distance. While they are easily tamed, some wild Ussals will attack Matoran if provoked. Ussals are also amphibious – while they are usually found on land, they can live underwater too.

Ussals are some of few biomechanical Rahi that grow as they age. Ussals generally start out very small (several inches long) and then grow to a ridable size. They age for a while after this and then develop fairly rapidly into a larger stage and may or may not change color. Matoran often regard the smell of Ussals as unpleasant, and the pens on Metru Nui could be detected even from a distance by their scent.

• Pewku

Pewku (formerly Puku) is an Ussal Crab that has had a long history of being passed down between Matoran.

Long ago on Metru Nui, she was the favorite Ussal of Orkahm, and pulled Ussal Carts for him. During the search for the Great Disks, Pewku was threatened by Ahkmou, and Orkahm traveled to Sector Three to save her. After the Great Cataclysm, Toa Whenua suggested that they take Pewku with them.

On Mata Nui, she became Onepu’s racing crab, and the two went on to win the Great Ussal Race three times. After Pewku became too old for racing, Onepu entrusted her to Midak. Under his care she worked as a taxi crab, transporting Matoran between Po-Wahi and Onu-Koro. It was said that while Pewku was old, she could navigate the pitch-black tunnels better than any Matoran. It was while working as a taxi crab that she first met Takua and took a liking to him. When the Ussalry arrived at the Kini-Nui to assist Takua and his company, Pewku came with them, and Takua rode her back to Onu-Koro just before he descended into Mangaia.

After the defeat of the Bohrok-Kal, Takua assumed full ownership of Pewku. After the Naming Day ceremony, in which brave Matoran were renamed in honor of their acts against the Bohrok-Kal, Takua, feeling she merited the honor as well, renamed Puku to Pewku. The Turaga accepted this, but did not hold a ceremony for her. And when the Kanohi Avohkii was discovered (she was with Takua when he found the Mask of Light), Takua and Jaller rode Pewku all over the island, braving dangers such as Graalok and the Rahkshi.

When Takua was transformed into Takanuva, Jaller became Pewku’s new owner, and she resided with him in Metru Nui. After Jaller left to find and assist the Toa Nuva, Pewku was left ownerless. When Toa Jaller returned to Metru Nui he decided to give Pewku back to Orkahm.

Dark Mirror

In the Toa Empire Pocket Dimension Pewku was seen pulling a cart driven by Jaller. They, Toa Kualus, and Toa Bomonga were on a trip to deliver the Kanohi Vahi to Tuyet in Metru Nui.

Abilities and Traits

Pewku, despite being a Ussal Crab, has many abilities, although most (if not all) of these abilities may be basic Ussal Crab abilities. She is able to climb vertically upwards as demonstrated in Mask of Light. She is also capable of rolling up into a ball, which may be either a defensive move or simply something Ussals do when they are scared.

Like all Ussal Crabs, Pewku has two natural crab claws.

• Tahtorak

The Tahtorak are one of the largest land Rahi ever seen on Metru Nui.

History

Tahtorak are native to both the island of Keetongu’s species and to Zakaz. Tahtorak were used as steeds for Keetongu’s species and still are for the Skakdi.

An Order of Mata Nui member was told by a dying Tahtorak that its kind have had enough of the Skakdi’s warring and destroying of Zakaz, and plan to wipe them out.

Tahtorak of Metru Nui

A Tahtorak was dropped onto Metru Nui by Brutaka via his Kanohi Olmak for fun. It went on a rampage in Ga-Metru before being brought down and locked in the Archives. Through unknown circumstances it somehow became buried deep in the Fikou Web, where it lay asleep until it was accidentally awakened by a number of Lava Eels the Toa Metru agitated during their conflict with Krahka. Later, it tore its way to the surface of Ta-Metru where it proceeded to lay waste to the city, all the while asking for an “answer” to a question no one could understand, although Rahaga Pouks theorized that it asked how it came to Metru Nui, so far away from its home.

The Toa Metru defeated Tahtorak by weakening the ground until it fell through. Much later, that same Tahtorak reappeared when the Visorak overtook the city. Krahka managed to get it to ally itself with her, the Toa Hordika, and the Rahaga. It fought a brave battle against the Zivon, which resulted in Krahka, Zivon, and the Tahtorak to be thrown into the Field of Shadows.

1,001 years later, he and Krahka traveled throughout the Field of Shadows again, only to find themselves exiting through a vortex created by Brutaka inside the Piraka Stronghold. Krahka shapeshifted into a flying Rahi and flew away from Voya Nui, but the Tahtorak remained behind.

After the Toa Inika retrieved the Kanohi Ignika and Vezon and the Kardas Dragon were separated, Tahtorak ran into Kardas and they began to battle one another. In the end, Tahtorak won. Annoyed, Kardas fled the island. Axonn knew Tahtorak would be a threat to all who lived on Voya Nui, so he summoned Botar to transport Tahtorak elsewhere. Simply for fun, Botar teleported him into the very center of Xia. He went on a rampage in the city there, fighting the Kanohi Dragon until the Toa Hagah retained both of them. The Tahtorak was brought down by Bomonga using his Mask of Growth. Pouks then used Stone bonds to contain the Rahi.

Abilities and Traits

Tahtorak rely on their brute strength and their thick hide for offense and defense, but it seems that the Tahtorak’s hide is vulnerable to the Zivon’s stinger. One swipe of their tail can knock over many buildings at once.

The Tahtorak on Metru Nui stood over 40 feet (12 meters or 8.9 bio) tall.

Trivia

• Tahtorak was created by Justin Lamb, known as Tad 10-OH on BZPower. The creation was the winning entry in the Lego’s Rahi Building Contest. It was was sent in to LEGO as part of the LEGO Magazine Rahi-building Contest. It was given a name and story role by Greg Farshtey in the book BIONICLE: Rahi Beasts.
• On Zakaz, battle Tahtorak are often killed by the use of a Devastator.
• Makuta Gorast was once trampled by a Tahtorak stampede.

• Takea

The Takea are fierce shark-like predator Rahi. Dubbed the “King of Sharks,” just the rumor of a Takea in the water is enough to send the Matoran of Ga-Koro scrambling to shore. Takea are natural enemies of Tarakava, although the sharks consider anything in the water an enemy, sometimes even other Takea. Hahli chased these sharks underwater in Ga-Koro to train in Speed for the Kolhii matches. In Metru Nui, the Takea used to attack Matoran ships just for sport. In The Pit, Takea, mutated by exposure to the mutagen in the waters, are part of Pridak’s army.

• Taku

Taku are duck-like birds.

History

When Lewa first arrived on Mata Nui, he almost killed a Taku when he landed on a tree branch and dislodged it from its nest. Surprised, he accidentally activated his Elemental Air power and made it float back up to its nest. After this, he realized again that he had control over the Air.

Abilities and Traits

The Taku are close relatives of the Gukko, though much smaller in size. Unlike their scavenging cousins, the Taku are aquatic, capable of diving to great depths in order to catch fish.

• Tarakava

Tarakava are reptilian sea creatures that hunt in pairs and live near water regions.

History

On Metru Nui, Tarakava patrolled the seas around Ga-Metru, hunting fish to their pleasure. After Teridax caused the Great Cataclysm, many Tarakava fled to the island of Mata Nui, where they were soon placed under the control of Teridax. He used them to prevent the villagers of Ga-Koro from constructing their huts.

Soon after the coming of the Toa Mata, Teridax had a Tarakava sink one of the huts in Ga-Koro, trapping many of the Matoran and Turaga Nokama inside. Macku escaped and sought help from Takua, who managed to raise the hut. The giant lizard attacked the village, but was defeated by Toa Gali, losing it’s infected mask in the process. Without Teridax’s influence, the creature was much more docile, and was nursed back to health by the Ga-Matoran.

While exploring the waters of Mata Nui, a Tarakava attacked Gali. The Toa of Water managed to trick the infected lizard Rahi into a cave and then covered the entrance with rocks to block its exit. After Gali had retrieved her Miru from the cliffs, more Tarakava attacked her, in conjunction with Nui-Jaga. Tahu dispatched the scorpions, while Gali took on the lizards. One Tarakava downed her with it’s powerful limbs, and she landed in the water. These Tarakava fled while Tahu rescued Gali. Teridax later marshalled several Tarakava to attack the Toa Mata during their meeting, but these were defeated Tahu and Pohatu.

Later, while the Toa Mata were underground, attempting to reach Teridax, Tarakava assaulted Kini-Nui along with other Rahi. These were repelled by the Matoran millitary, and eventually retreated. Teridax released his hold over them after his defeat, and the Tarakava returned to the waters around Ga-Wahi.

The Tarakava did their best to avoid the Bohrok, and later retreated back to Metru Nui when the Toa Nuva released the Bohrok to do their job, where they now reside.

Two-Headed Tarakava

A mutated, easily angered Tarakava with two heads was housed in the Metru Nui Archives, where it was encountered by Nuju and Whenua on their search for the Great Disks. This Tarakava specimen attacked a Ga-Matoran fishing boat, leaving only splinters. After its capture, it was placed in a holding tank because it is immune to stasis. Whenua told Nuju not to bother the Tarakava, but Nuju tapped the glass, and the Tarakava tried to attack him, cracking the inner layer of glass in the tank. Whenua found Nuju, and both of them left the angry beast alone.

Abilities and Traits

A Tarakava’s primary hunting method is to lurk just below the water, stalking their prey, and then stun their victim with blows from their powerful forelimbs. Tarakava can stay underwater for long periods of time and are powerful enough to capsize large watercraft.

• Tarakava Nui

The Tarakava Nui was one of the last creatures created by Teridax before he tried to take over Metru Nui. It is a mutant version of the Tarakava created with the help of the Energized Protodermis Entity. Also known as the King of Lizards, the Tarakava Nui is a giant Rahi that strikes from ambush. It was responsible for foiling efforts to build Ga-Koro until the Ga-Matoran and Turaga Nokama temporarily drove it off.

• The Mountain

The Mountain is a living mountain on the island of Xia. Rahi and Vortixx that attempt to scale it are frequently “eaten” by its crevices and injured by its Acidic grass.

History

The Mountain was once a small, sentient rock created by Makuta Mutran to maintain as a pet project. During a visit to Xia he accidentally left it there, and over time it grew larger and larger until it reached its current size.

The Vortixx that live on Xia have a rite of passage in which two Vortixx must climb the mountain. If both manage to come back, they are given the chance of better working conditions, but if only one returns alive, he or she is given a special status because they showed they had what it takes to survive in the world.

At some point of history, the Mountain swallowed a Toa of Earth who attempted to scale the mountain with his Earth Claw. At another time, the Brotherhood of Makuta attempted to export parts of the Mountain to Destral, hoping to add another asset to their formidable security. The attempt failed, as the living rock found that it liked the taste of the Visorak that were patrolling the island quite well.

During a battle on Xia between a Tahtorak and the Kanohi Dragon, the former having been dropped there by Order of Mata Nui member Botar and the latter having been held on Xia for some time, large chunks were ripped off of The Mountain. Despite this, no permanent damage was apparently done, as Toa Hagah Iruini took precautions to prevent the Mountain from consuming the Kanohi Dragon following its defeat.

• Toa Terrain Crawler

The Toa Terrain Crawler is a massive aquatic Rahi which was used by the Toa Mahri during their battles with the Barraki.

History

The Toa Terrain Crawler was initially caught by Axonn in the waters around Voya Nui when the landmass was still on the planet’s surface. Axonn modified the creature’s armor, installing techno-organic mechanisms on its interior, armor plates to act as hatches, and weaponry, among other things. Axonn kept the creature chained in a chamber of The Cord.

After the Toa Mahri returned to the Cord with the Matoran of Mahri Nui, they encountered Axonn. Axonn swam through the flooded cord, directing the Toa Mahri to the chamber where the beast was held. He then directed the Toa to enter the creature. Slipping through its armor plates, the Toa Mahri were able to use the creature for transport to the base of the Cord.

Once the Toa Mahri had reached their destination, they released the Toa Terrain Crawler to enjoy freedom in the seas.

Abilities and Traits

The Toa Terrain Crawler looks and moves more like a machine than like a living creature due to its heavy modifications. Its techno-organic appendages enable it to repair its occupants’ battle-damaged masks and armor and return them in an instant. As well as healing damage done to its occupants, the Toa Terrain Crawler has a system which automatically heals it of any damage using chemicals. The only sea creatures which the Toa Terrain Crawler fears are Spider Crabs.

The Toa Terrain Crawler has armor sixty centimeters (23.6 inch) thick and can reach a maximum speed of forty knots (74.1 Kmph / 46.3 Mph). It can house up to seven passengers: six inside, and one mounted on the outer blaster.

• Troller

The Troller is a huge, horned, worm-like Rahi, and is one of the most feared creatures in Po-Metru. It lives far beneath the sands, emerging only now and then to feed. No Po-Matoran had ever stayed in the vicinity of a Troller to find out just what it ate. Its gaping mouth is large enough to swallow an entire block of the Metru.

At one point, a Troller nearly ate Nuju, Onewa, Whenua, and Lhikan after their escape from the Dark Hunter Prison. Onewa used his Komau to control the Rahi, and it transported them through the Metru inside its mouth.

• Tunnel Stalker

Tunnel Stalkers are large desert Rahi from Po-Metru. They are well known for their hunting technique: A Tunnel Stalker will lurk in tunnels just beneath the sand, with its bladed tail ready to attack. When it senses movement on the surface, it will leap out of the sand and strike whatever had passed by. Only two members of this species were ever seen in Metru Nui; one was captured by a Vahki squad and sent to the Archives to be viewed by all. Some Tunnel Stalkers found their way to Po-Wahi on Mata Nui.

Besides their stingers, Tunnel Stalkers also have sharp pincers and mandibles for defensive purposes.

• Tunneler

Tunnelers are lizard-like Rahi that live in Po-Metru and are about twice the length of a Matoran. They eat solid Protodermis and have been known to burrow into warehouses, where they consume both raw Protodermis and finished tools.

Although they don’t usually pose a real threat to Matoran, occasionally one will give in to a “madness” and rampage through Matoran work areas. Signs of this condition include red eyes and mottled scales.

Their primary defense is their ability to take on the form of any force directed at them (i.e. When fire is blasted at them their bodies are converted to fire). This can make them very dangerous, but can also be exploited as a means of defeating them. For instance, Toa Metru Vakama and Onewa defeated one by making it turn into glass, a form too fragile to withstand its weight if it moved.