Virtual-On Force

After you've completed each mission, you'll be given new VRs that you can use or change your partner to. If you look by the name, it will let you know when a VR is "new " or not. Simply play through the mission mode and you're sure to unlock these achievements as you go. They must be unique VRs, not just more of the same. VRs which you unlock from the DLC also count towards these achievements.