Koji Igarashi is a Japanese video game producer, programmer, writer, and creative director. In 2009, he was chosen by IGN as one of the top 100 game creators of all time.

Castlevania: Symphony of the Night is a 1997 action role-playing game developed and published by Konami for the PlayStation and Sega Saturn. It was directed and produced by Toru Hagihara, with Koji Igarashi acting as assistant director. It is a direct sequel to Castlevania: Rondo of Blood, taking place four years later. It features Dracula's dhampir son Alucard as the protagonist, rising from his slumber to explore Dracula's castle which resurfaced after Richter Belmont vanished. Its design marks a break from previous entries in the series, re-introducing the exploration, nonlinear level design, and role-playing elements first experimented with in Castlevania II: Simon's Quest.