Standing at 200 ft. (61m), this predecessor to The Prototype appeared in Locust Ch 1.5, an unreleased Locust Film. This mech made by Carlos was programmed with a female robotic voice, leading to this character being seen as female. We don't have any footage of the official Pink, black, and gold colored B.E.T.A, and we don't know of any actual images thus far either, but we do know her abilities:

• An orange & yellow colored spiral heat ray 

The original BETA character was red & black, but not much else was different.

Unlike the Official Version of B.E.T.A ironically, we actually have images AND video footage of this original version in action.