Downloadable virtual reality game software; Headsets for virtual reality games; Humanoid robots with artificial intelligence; Hygienic covers adapted for virtual reality head-mounted displays; Hygienic covers adapted for virtual reality headsets; Hygienic pads adapted for virtual reality head-mounted displays; Hygienic pads adapted for virtual reality headsets; Virtual reality goggles; Virtual reality headsets; Virtual reality headsets adapted for use in playing video games