Twinleaf Town: 6 species in 2 games

6 species, 3 versions

Diamond and PearlPlatinum

Diamond and Pearl: 6 species
Species	Method	Levels	Chance	Game page
Psyduck	Surfing	20 to 40	90%	All places
Golduck	Surfing	20 to 40	10%	All places
Goldeen	Fishing with a good rod	10 to 25	45%	All places
Seaking	Fishing with a super rod	20 to 50	45%	All places
Magikarp	Fishing with a good rod	10 to 25	55%	All places
Magikarp	Fishing with an old rod	3 to 10	100%	All places
Gyarados	Fishing with a super rod	30 to 55	55%	All places

Platinum: 6 species
Species	Method	Levels	Chance	Game page
Psyduck	Surfing	20 to 30	90%	All places
Golduck	Surfing	20 to 40	10%	All places
Goldeen	Fishing with a good rod	15 to 35	45%	All places
Seaking	Fishing with a super rod	30 to 55	45%	All places
Magikarp	Fishing with a good rod	10 to 25	55%	All places
Magikarp	Fishing with an old rod	3 to 15	100%	All places
Gyarados	Fishing with a super rod	30 to 55	55%	All places