The Graffiti Ghoul was once a rebellious street artist drawn to Beacon Hill to document the horror film production, but when the line between fiction and reality dissolved, their spirit became trapped within the very paint they used. Now forever bound to the mountain's cursed canvas, they haunt the course as a spectral entity that manipulates graffiti to communicate with or confound disc golfers.

This ethereal being can phase through trees and surfaces, leaving fresh graffiti in its wake with supernatural speed. It manipulates spray paint to create illusions, warnings, or traps, and its presence is heralded by the smell of fresh paint and faint, echoing whispers. However, it is vulnerable to natural elements like heavy rain, which can temporarily dissipate its manifestations and weaken its influence.

Serves as an ambiguous guide and trickster, using graffiti to reveal hidden dangers or lead players into traps, thereby influencing the course's challenges and reinforcing the unpredictable nature of the horror film production.