Finally, the Unknown Dungeon (or Cerulean Cave) had a different layout that was the basis for the one to return in FireRed, LeafGreen, HeartGold, and SoulSilver. The pallet for Pokemon Green on a Game Boy Color was also different, matching the name of the game. A few glitches were corrected between the translations, and a difference in coding means they can never connect via Link Cable. These sprites are unique to the Japanese Red and Green and aren't found on any English copy of the game. Most notably are the Pokemon sprites, which had very unusual proportions compared to the art in recent years. Graphically they looked quite different from the English Red and Blue, although some elements can still be seen in these games (the water in the Safari Zone, for instance, looks like the water found in the rest of the game in Red and Green).

Obviously the name and title screen was different for Green, but it was basically what we refer to as Pokemon Blue, with the same version exclusives and the like. Essentially they were the same game as the English Red and Blue, however there are a few differences. In 1996 Pokemon Red and Green were released in Japan and featured the Pokemon Charizard and Venusaur on the covers. Black: Victini & ReshiramWhite: Victini & Zekrom.Pokémon Ranger & The Temple of the Sea!.Mystery Dungeon - Explorers of Time & Darkness.Mystery Dungeon: Blazing, Stormy & Light Adventure Squad.Pokémon Battle TrozeiPokémon Link: Battle.

Pokemon green rom jp