“Look out, everybody, things are about to get awesome!”
BALEX had been serving as the navigation AI on board the Family Jewel for some time when the ship's owner Montgomery Jakobs introduced a combat AI with an extensive range of personality settings. The emotional setting Jakobs selected for the new AI caused her to enter into a relationship with BALEX, which soon soured thanks to their frequently clashing personalities. Their acrimonious parting of ways came when BALEX crashed the ship on the surface of Eden-6, and GenIVIV had him installed into the body of a teddy bear before leaving him to the mercies of the local fauna.
BALEX is encountered during the mission The Family Jewel where he guides the Vault Hunters through the derelict ship Family Jewel while arguing with GenIVIV. As a navigation AI, BALEX is later found to be useful to the Crimson Raiders and is installed onboard Sanctuary III.
- BALEX is the first character in the Borderlands franchise to use an uncensored version of the word "Fuck"; he does so when warning the character about a Saurian approaching.