Promotional materials, including music videos, were produced without Thornton's involvement. Thornton states that he was "shocked" by the label's misrepresentation. Following the release of the album, Thornton performed under the Dr. Octagon billing, but did not promote the album. "Dr. Dooom 2", Thornton's 2008 follow-up to "First Come, First Served", was produced in response to "The Return of Dr. Octagon". In the music video for "R.I.P. Dr. Octagon", the appearance of Dr. Octagon resembles the character design used in promotional materials by CMH Records.