Crucible

The Crucible was originally a program to learn and adapt to become an advance intelligence for security systems, but was almost scrapped by it's creators for unknown reasons and found its way in the Grid and took on the form common to digital inhabitants to blend in. After the Purge, the Crucible evolved into an advance artificial intelligence after inadvertently absorbing the energy of a Heartless. Fueled by revenge to CLU, the Users and the sole purpose to evolve, wanting to leave the Digital Frontier to seek out the ultimate knowledge: Kingdom Hearts.

Personality
Prior to it's transformation after absorbing dark energy, Tron believed the Crucible was more of a learner and understanding program that wanted to use it's knowledge to good purpose. It had a negative view on CLU's belief in so-called 'perfect system', stating that nothing can stay the same as it believes that if users change then possibly computer programs and virus included.

But after the purge of the ISOs, a race of self made programs that were proof of it's believes, now saw CLU as a 'mere program with limited understanding' and now saw programs are as misguided as Users from the real world. It knows about other worlds, Keyblades and Heartless and saw them as just as corrupted as them and began its sole purpose to leave the system and launch a crusade against the chaos and disorder. Having the idea of purging the corruption and