A Goon Doc is the Ghouled version of the Boon Doc. A Goon Doc is the exact opposite of a Boon Doc, since the Boon Doc heals and the Goon Doc kills. The Goon Doc made its debut in the episode "The Unbeatable Master" to kill Shanai. A Mega Morphed Goon doc appears on the poster for the Slugterra movie Ghoul From Beyond and it turns to be the main villian in the movie and Return of the Elementals.
Dr. Blakk's Goon Doc killed Shinai.
- Protoform Abilities
- Makes people feel ill when standing nearby.
- for more see "The Goon"
- Medusi - Poison attack that will slow an opponent down for a short period of time.
- Creepsleep - Poison paralysis drops opponent into a temporary coma.
- Turncloak - Emits a ball of dark light that creates a zombie-like feral state. Slingers will start attacking allies.
- Ghoulgoyle - Hits an opposing slug and uses dark energy to transform them into a ghoul.
- Leachfang - Kills the oppenent by using this. (Dr. Blakk's Goon Doc probably used this to kill Shanai)
- Darkgoyle (unofficial name) - see "The Goon"