The Konami GB Collection is a series of video game compilations for the Game Boy Color. The compilations were originally released from 1997 to 1998 in Japan for Game Boy, and were later released in Europe in 2000 for Game Boy Color. Included in Volume 4: - Gradius II: The Return of the Hero (Gradius: The Interstellar Assault) - Castlevania II: Belmont's Revenge - Yie Ar Kung-Fu - Antarctic Adventure This was released as Volume 3 in Japan.