Production Credits
Hiroyuki Hoshiyama has 13 production credits.Writing
Credited for Writer in 4 shows - Osomatsu-kun, Mobile Suit SD Gundam Mk I, Future GPX Cyber Formula and Lord of Lords Ryu Knight.
Credited for Screenplay in 7 shows - Document: Fang of the Sun Dougram, Megazone 23, Spooky Kitaro, Spooky Kitaro: The Great Yokai War, Spooky Kitaro: The Strongest Ghost Army! Landing in Japan!!, Dirty Pair: Project Eden and Vampire Wars.
Credited for Original Story in 1 show - Document: Fang of the Sun Dougram.
Credited for Series Composition in 1 show - Osomatsu-kun.