|Known locations||Widespread across Matoran Universe (formerly)|
The claw of the Mutant Ussal stored in the Archives
On Metru Nui, Ussal Crabs were found in the wild near the shores of Ga-Metru. They were used by the Le-Matoran Ussal riders in Le-Metru, where they hauled transport carts around the city and competed in racing tournaments. Tame Ussal 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. Ussal were well-liked by the Onu-Matoran of Metru Nui, who employed the crabs to move heavy objects, including Stasis Tubes.
After the Great Cataclysm, many Ussal migrated through the Great Barrier to the island of Mata Nui, where they and the Matoran lived for 1,000 years. Ussal were found all over the island, but were primarily used by the Onu-Matoran. Some worked in mining tunnels like the Le-Koro Highway; others worked in the great Ussalry, led by Onepu, or worked in the Great Mine.[MNOG, Ch. 5] In addition, some were still used in sports, such as the Great Ussal Race[QftT] and Kolhii. There were some wild Ussal, but not many of them were infected by Makuta Teridax during his invasion.[QftT]
A rare mutated Ussal, many times the size of a normal one, resided in Metru Nui. It is thought to be a hybrid with another larger species. It possessed inferior sight, and developed greater hearing to hunt. It was kept in a sub-level of the Onu-Metru Archives, as it was resistant to the effects of stasis.
1,001 years ago, while searching for the Onu-Metru Great Disk, Toa Metru Nuju and Whenua looked within the beast's cell, provoking it. The Ussal attacked the two Toa viciously. Whenua generated a deafening hum from his Earthshock Drills, using the creature's sensitive hearing against it. The mutant Ussal hurled the two Toa out of its cell, and they locked the door upon it. After the Great Spirit Robot was critically damaged, it is unlikely that the Mutated Ussal survived as it was trapped in its cell.
Rock Ussal are specialized Ussal crabs, considerably more aggressive than the average Ussal.[VNOG]
Rock Ussal are native to the Southern Continent. When the Great Cataclysm tore Voya Nui out of the continent and up to the surface of to Aqua Magna, many Rock Ussal survived the journey and adapted to life on the barren island. They could be found scattered all across Voya Nui, but especially in the Desert of Sorrows.[VNOG]
After the Great Spirit Robot was critically damaged in the Battle of Bara Magna, the surviving Rock Ussal left the Matoran Universe and immigrated to Spherus Magna.
Abilities and Traits
Ussal are very common and come in a wide variety of colors, including tan,[C1] black, purple and black, blue and yellow,[MNOG] red and orange,[VNOG] orange and blue, red-yellow and green,[QftT] or orange and dark gray. Ussals are known to make a chirping sound,[MNOG][B:MoL] though they may whine or shriek when upset. They have an unpleasant odor that makes their dwellings easy to identify from a distance. While they are easily tamed, some wild Ussal will attack Matoran if provoked. Ussal are also amphibious - while they are usually found on land, they can live underwater as well.[QftT]
Ussal are some of few Rahi that grow as they age. Ussal generally start out very small (several inches long)[B3:WoS] and then grow to a rideable size.[MNOG, Ch. 5] They age for a while after this and then develop rapidly into a larger stage;[B:MoL] they may sometimes change color during development as well, as observed with Pewku changing from blue and yellow[MNOG, Ch. 5] to brown and gray.[B:MoL]
Parts and instructions to build an orange Ussal were included with the 10023 Bionicle Master Builder set. Pressing levers on either side of its back caused it to pinch anything lying between its two claws. The larger Ussal Pewku was released in the larger boxed set "Takua and Pewku" in 2003. This Ussal featured a crawling feature when one rolled it across the floor on its non-canon wheels.
- Ussal were the first species of Rahi to be seen in the Comics.[C1]
- Whenua believed that the Ussal and the Manas were somehow related, but Matau strongly disagreed with that theory.
- While Ussal do not appear in any known builds of BIONICLE: The Legend of Mata Nui, an unused Ussal model can be found in the files of the alpha v0.006 build.
- Ussal Building Instructions on LEGO.com (Instructions Begin on Page 38)
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