Pokemon Ultra Emerald 4.B Aplysia is in the grassland near Sinnoh Steel City.

Gastrodon (Japanese: Gastrodon, English: Gastrodon), also called Gastrodon, is a water-type and ground-type Pokémon. Can be obtained in the grassy area near Sinnoh Steel City.

Skills include throwing mud, playing with mud, hardening, water wave, mud bomb, awakening power, praying for rain, overwhelming the mountain, and turbid current self-regeneration.

The Aplysia evolved from the shellless Aplysia and has two forms. There is not a single bone in its limp body, and if that part is injured, it recovers immediately. Due to long-term geographical isolation, the Aplysias distributed to the east of Tianguan Mountain are blue, while those to the west are pink.

Game introduction:

"Pokémon Emerald" is a Game Boy Advance role-playing game developed by Game Freak. It is a component of the third generation of the "Pokémon" series and an expansion pack version of "Pokémon Ruby and Sapphire". It was released on September 16, 2004.

In the game, players will control a Pokémon trainer to travel around the Hoenn region, defeat 8 gym trainers, and challenge the Four Heavenly Kings and the champion. In addition to retaining the newly introduced Pokémon in the original version, the game also adds some Pokémon from the first and second generations of the main series of "Pokémon", introduces the story of Rayquaza, and adds post-clearance features. The battle development area and other content are available for players to play.