Bhakti

Bhakti is a small robot in Final Fantasy XIII. It can be found on the second floor of a house in the Dilapidated Dwelling in Oerba. Once fully repaired, it informs the player of any secrets in Gran Pulse. Two of the game's Achievements/Trophies can also only be obtained through Bhakti.

Repairing Bhakti
Repairing Bhakti is an optional sidequest first available when the party first visit Oerba in Chapter 11. There are five parts scattered across Oerba that must be obtained in order to fix Bhakti. These parts can only be found when the player visits Bhakti in the Dilapidated Dwelling for the first time.

The parts are found in the following locations:
 * The Power Cable is found in a cart in the courtyard outside the Dilapidated Dwelling.
 * The Battery Pack can be found in the Desolate Mill, South-West of the Dilapidated Dwelling. Can only obtained after defeating the Vetala inside.
 * The Trochoid Gear is obtained after defeating a Vampire in the Village Proper area. Unlike the other parts, this part is not marked on the map.
 * The Aspheric Lens is found on the first floor of the Deserted Schoolhouse. A Vetala and two Chonchons must be defeated to be able to obtain it.
 * The Metal Plate is found on the Rust-eaten Bridge, just outside the exit of the Derelict Depot

Once all five parts are found, return to Bhakti and Sazh will repair the robot.

Titles
Bhakti gives the player special titles depending on how many steps the player has walked on Gran Pulse. These titles earn the player extra items and components. These prizes are cumulative, meaning the player will always receive all the items for lower titles, even if they earn a higher rank.

Bhakti's Bonus Bytes
In addition to awarding the player with titles, items and trophies, Bhakti offers the player a random "bonus byte" whenever they examine it. All possible eleven bonus bytes, along with its meaning are listed below:

Etymology
Bhakti is aptly named after the Hindu principle of the same name; that through personal devotion to a deity, salvation can be achieved. This refers specifically to salvation from 'samsara', an endless flux of becoming and perpetual wandering.