After Jones was filmed in position, he was replaced by a hollow framework with a rubber mask that was pushed from behind by a snake head-shaped puppet to give the illusion of Doom's facial bones changing.
Despois de que Jones fose filmado na posición, foi substituído por un marco oco cunha máscara de goma que foi empuxada por detrás por un monicreque en forma de serpe para dar a ilusión de que os ósos faciais de Doom cambiaron.