Virtual-On games in order

All 4 games of the Virtual-On series in the order they came out, from Virtual On: Cyber Troopers (1995) to Cyber Troopers Virtual-On Marz (2003).

1. 
   Virtual On: Cyber TroopersArcade, Saturn, PC +3 · Sega AM3
   1 Feb
2. 
   Cyber Troopers Virtual-On Oratorio TangramArcade, Dreamcast, Xbox 360 · Sega AM3
   1998
3. 
   Cyber Troopers Virtual-On ForceArcade, Xbox 360, PS4 · Sega AM3
   Oct 2001
4. 
   Cyber Troopers Virtual-On MarzPS2, PS3 · Sega AM3
   29 May