Smellaverse TM is the plugin for creating smells in the metaverse. A list of smells shows on the menu under SMELLAVERSE menu bar. You can choose any smell from thousands to making a custom smell. The limit of smells used in one game or Metaverse at any one time is 6. This is the limit of the Metaverse headset cartridge technology. The VR or Metaverse headset can only take up to six cartridges per game or Metaverse. One can change the cartridge set for each metaverse or each game.