Chile

Chile is a South American country occupying a long, narrow strip of land between the Andes to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far south. Chilean territory includes the Pacific islands of Juan Fernández, Salas y Gómez, Desventuradas, and Easter Island in Oceania. Chile also claims about 1,250,000 square kilometres (480,000 sq mi) of Antarctica under the Chilean Antarctic Territory.

Tekken X Dead or Alive
There are two stages located on that country: Fiesta del 18 de Septiembre and La Moneda Palace's Lookout.

Metal Slug 9
Chile is the battlefield where Mission 5 tooks place.

Tekken 8 (Wazzupguys)
The game has a Chilean character named Nikita Mendoza which is one of the playable characters.

Wild Fist
Althought it is yet to announce if Chile is going to have an stage, there are three characters that are based on that country's culture, myths and legends: SaiSai Vilu, MaiMai Vilu and Rapa Maku.

More to be added...