Pokémon Emerald is an enhanced remake of Pokémon Ruby and Sapphire, with better graphics and more Pokémon available. It also features a new area called Battle Frontier. Pokémon Emerald introduced an expansion of the safari zone; changes in Pokémon abilities; a new place, called the Trainer Hill; many move tutors; new event Pokémon; new ways to get the Regis; the return of Pokémon animations, introduced in Pokémon Crystal; the Marine and Terra cave; a Mirage Tower; the Desert Underpass; Magma Hideout; a way to get Johto Starters; a Trainer Hill much like the Trainer Tower in Pokémon FireRed and Pokémon LeafGreen; the ability to refight the Gyms; a new Match Call system; a new attack called Volt Tackle; and much more...