In game UI

The bottles in the market place can be held by users through collider and OVR grabbable component.

The exit user interface serves as a purpose for user to exit the game if wanted. A transparent GameObject collider near the exit user interface will trigger the Exit script, in which a canvas appears with Yes button and No button. Both Yes button and No button have GameObject colliders placed, where Exit Game script or Remain Game script is attached to each of the colliders. The Exit Game script has a scene manager to return to the Main Menu.