Cyber Troopers Virtual-On (roughly "Computer Fighting Machine Virtual-On") is a series of video games created by Sega-AM3. The original series was first published for arcades in February 1995. The game features fast, action-oriented gameplay requiring quick reflexes. It has seen four iterations to date and has been ported to several video game consoles.
The mecha designs for all installments of the series were created by robot designer Hajime Katoki. Related merchandise released for sale include plastic models, original soundtracks, trading figurines and audio drama CDs.
Virtual On features mechs called Virtuaroids, or VRs, that are large robots the player controls in battles against enemy VRs, and its twin-stick control, in which two joysticks, complemented by an array of controls, are used by players. Additionally, in the plot of the first game, Cyber Troopers Virtual On (Virtual On: Operation Moongate), the Virtual On's arcade machine is actually a remote operation device sent from the future in search of "Virtual On Positive" (VO+) pilots.
In the Virtual On universe, Virtuaroids became relatively easy to produce when the creation of matter through "reverse conversion", and the virtuaroids themselves, were discovered. They are produced by first constructing a working skeletal frame, then installing the "V-connector", and lastly creating their armor through reverse conversion. Later in the series, the V-converter would be responsible for the full creation of the Virtuaroid, including the skeletal frame.