Prior to the Great Cataclysm, Jaatikko lived and worked in Ko-Metru. He was captured by Vahki under the command of Makuta Teridax disguised as Turaga Dume. He was then placed into a Matoran Sphere and went into stasis, but was later rescued by the Toa Metru and reawakened on the shores of Naho Bay on the Isle of Mata Nui.
As a result of his confinement in a Matoran Sphere, Jaatikko was physically shrunken and lost his memories of Metru Nui. Upon arrival on Mata Nui, he took part in the construction of Ko-Koro, directed by Turaga Nuju, making use of parts from Airships used by the Toa to bring the Matoran to Mata Nui. In Ko-Koro, Jaatikko was an Architect. He was well-versed in the Virtue of Destiny.
After the defeat of the Bohrok-Kal, Jaatikko was rebuilt into a more physically powerful form. He provided the Ga-Matoran Hahli with the Charm of Destiny when she visited Ko-Koro during the Kolhii Tournament.
Jaatikko was evacuated from Ko-Koro with the other Ko-Matoran following the Rahkshi's attack on the village.
Return to Metru Nui
Jaatikko later helped in the construction of Boats to facilitate his, and the other Matoran's return to Metru Nui. Once they had reached, the Matoran, including Jaatikko, worked on the city's reconstruction, until the usage of the Staff of Artakha restored Metru Nui to its' former glory.