H dōjinshi are non-professional comics, animation, and video games with content that is sexual in nature. The term is most often used to refer to H manga, H anime and H games produced by amateur authors.

Derivative works of H dōjinshi

Anime

Anime Fiction
Mania: Secret of the Green Tentacle (spoof of Nadia: The Secret of Blue Water)
Sailor Moon and the Seven Ballz (spoof of Dragon Ball, and Sailor Moon)
StarBallz (spoof of Dragon Ball, Sailor Moon, and Star Wars)