In Pokémon FireRed and LeafGreen, in the Sevii Islands, the cave is found on Outcast Island. In Pokémon Emerald, in the Hoenn region, it is found on Route 103. However, unlike in in FireRed and LeafGreen, the cave appears only after the player makes it to the Hall of Fame. Also, the interior of the Altering Cave in Emerald differs from the one in FireRed and LeadGreen.