Castlevania II: Belmont’s Revenge Release Info

Nintendo Game Boy
Japan – July 12, 1991
United States – August 1991
Europe – November 26, 1992

Nintendo Game Boy – Konami GB Collection Vol. 3
Japan – February 19, 1998

Nintendo Game Boy Color – Konami GB Collection Vol. 4
Europe – July 26, 2000

PlayStation 4 – Castlevania Anniversary Collection
United States – May 16, 2019
Japan – May 16, 2019
Europe – May 16, 2019
Australia – May 16, 2019

Nintendo Switch – Castlevania Anniversary Collection
United States – May 16, 2019
Japan – May 16, 2019
Europe – May 16, 2019
Australia – May 16, 2019

Xbox One – Castlevania Anniversary Collection
United States – May 16, 2019
Japan – May 16, 2019
Europe – May 16, 2019
Australia – May 16, 2019

PC/Steam – Castlevania Anniversary Collection
United States – May 16, 2019
Japan – May 16, 2019
Europe – May 16, 2019
Australia – May 16, 2019

Notes
It is referred to as Dracula Densetsu 2 in Japan, which translates to Legend of Dracula 2.

The exact release date in the U.S. is unknown, but it was during August 1991.

Was re-released in Japan as part of Konami GB Collection Vol. 3 for the Game Boy on February 19, 1998.

Re-released in Europe as part of Konami GB Collection Vol. 4 for the Game Boy Color, with new color graphics in 2000.

Castlevania Anniversary Collection also includes the Japanese version of the game.