Back in 2017 I saw this custom conversion of Transformers Crossovers Gray Hulk into a Classics-style Horri-Bull using parts from the Terri-Bull and Nightbeat Titan Masters by Thiengo. I liked the look of the resulting figure so much that I wanted to try it myself, but the Gray Hulk figure was quite expensive on the aftermarket at the time. After checking it again, the figure is no longer expensive as it once was, so I decided to go ahead and try it. As I've never liked the idea of Headmasters, this figure can't detach its head, which allowed me to cut out the Nightbeat part of Thiengo's setup. Instead I simply removed the Gray Hulk head, secured Terri-Bull's TM head using a small screw, and filled the recess with several layers of Loctite Super Glue to secure it in place, which was then filed down to be flush with the rest of the neck panel and painted. The back of the Terri-Bull face was replaced with a gray mold of Nonnef's Perceptor set, which was bought on clearance before the mold was discontinued. The figure can still transform no problem.