A fictional transformable [[mecha]] from the [[MACROSS]] science fiction anime series. 

It first appeared in the [[Macross 2]] OVA from 1992.

The [b]VA-1SS Metal Siren[/b] is an advanced and very powerful combat-capable prototype [[variable fighter]]. 

It is armed with an experimental "EMP (Electro Magnetic Pulse) anti-capital ship device":http://en.wikipedia.org/wiki/Electromagnetic_pulse, missiles, and many energy weapons.
va-1ss