Alolan Rattata & new Z-Moves revealed in Nintendo 3DS Direct
Pokemon Sun & Moon — 01 September, 2016
The latest Nintendo Direct has just aired and it revealed a new Alolan form for Rattata. It is Dark/Normal type and has the ability Gluttony or Hustle. It's said that Yungoos was introduced to Alola to combat the Rattata population, but instead Rattata changed its type to scare off Yungoos.
The Direct also mentioned that a special Munchlax will be distributed from the launch of Sun/Moon, until January 11th 2017.
Update: a new video has been released: