I may as well do the most of the state because it'd be nice to use on PC too if I ever feel like it . Also, the ghost is for the old trial mode. Instead of observer mode it was ghost mode, and when you didn't have a subscription you could move around as a ghost. No one else could see you, and no scripts loaded(so not only could you not interact with NPCs and vice versa, a lot of things like doors and addtiledefs made worlds 'unplayable' for ghosts since they didn't load). The ghost icon itself was so if actual players with subscriptions were playing, the icon would show up on their HUD notifying them that there was a ghost there(possibly spying).