[@Mirandae] Holodecks seem kinda like a sort of augmented reality device, probably a type of portable advanced computer and headset to interact with internet via holograms displayed over their headsets- kinda reminds me of cyberdecks from Shadowrun

Vibroblade is a blade that vibrates. From star wars and other Sci fi media, it vibrates (at times fast enough to heat the blade and make it glow) to make cutting attacks more deadly/devastating. Sci-fi-ify your standard sword!