Rattata

Will chew on anything with its fangs. If you see one, it is certain that 40 more live in the area.

National Dex: 019

Regional Dex: 019

Locations in game: Routes 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 16, 18, 21, 22 Pokémon Mansion

Evolutions

Raticate - Level 20

Moves learn by leveling up:

Moves learnt by TM/HM