A-2

A-2 is a robot from the Generation 1 continuity family.

You can't see me!

_{This character has no official visual representation in any Transformers product or media... yet, at least.}

A-2 was the second attempt to create labor robots by the Quintessons using Vector Sigma. However, it was a failure, as was the first, A-1. They were succeeded by the first successful robot lifeform, A-3.