Prime universe
(Capcom's primary storyline)

β was an early strain of t-Virus designed by the Arklay Laboratory research staff in the early 1980s as development moved beyond the earlier α strain.


The β strain was used in the Cerberus Project, an experiment into the viability of canine Bio Organic Weaponry. A modified version of β, known as β II (Beta 2), was used as a bonding agent during the Hunter Project, which sought to instead create entirely new creatures by splicing genomes together. The prototype deemed successful was then cloned to ensure all new Hunters be identical.



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