Shin Gouki is an empowered version of Gouki (Akuma) from the Street Fighter series, appearing as a boss-style form in Street Fighter IV and related titles. The word "Shin" means "true" or "genuine," indicating a perfected or heightened state rather than a separate person. He serves as a formidable hidden or challenge opponent, representing Gouki's overwhelming mastery of the Satsui no Hado. In the series, he functions as an intimidating late-game test of player skill and a symbol of raw, destructive power.