Claim: Hideshi Hino, a Japanese manga artist who specializes in horror stories, released seven films in 2004 including Guinea Pig 2: Flower of Flesh and Blood and Guinea Pig 6: Mermaid in a Manhole.
Evidence: 2004 Dead Girl Walking The Ravaged House: Zoroku's Disease The Boy from Hell Death Train Occult Detective Club: The Doll Cemetery 
Guinea Pig 2: Flower of Flesh and Blood 1985 
Guinea Pig 6: Mermaid in a Manhole 1988