Chapter - Zapping
Zapping is an action applying to one thing.
Understand "zap [something]" as zapping. Understand "exorcize [something]" as zapping.
The player holds the ghost gun.
Check zapping when the player does not hold the ghost gun: instead say "You need the ghost gun to do that!"
Check zapping when the noun is not haunted: instead say "[The noun] does not appear to have any buildup of spirit energy."
Before zapping when the player does not hold the ghost gun and the ghost gun is visible: say "You reach for the ghost gun first."; try taking the ghost gun.
Carry out zapping: now the noun is not haunted.
Report zapping: say "You dispel the spirit energy from [the noun]."
[Singing is an action applying to nothing.]