Green Green: Kane no Oto Romantic is an enhanced PlayStation 2 adaptation of the original Green Green. The game places a greater emphasis on the romantic elements of solitude and introduces two new heroines, additional artwork, and fresh ending songs for the original five characters. It also features a built-in CG gallery, enriching the player experience.
An expanded console port of Green Green focused on the "solitude" romance part of the game. It adds two new heroines, new artwork, new closing songs for the original five girls, and a built-in CG gallery.