Trophy Garden Pokemon
To be able to catch these Pokemon you must first have the National Pokedex. When you have it go to the Pokemon Mansion and 'Save' the game. Then talk to the owner of the mansion and answer 'Yes' to all his questions and he will tell you that he saw new Pokemon in the Trophy Garden (below is a list of ALL the Pokemon that can be caught there). When the owner of the mansion mentions a Pokemon you don't want keep switching off the power to your game until he mentions a Pokemon you're after then 'Save' the game and run into the Trophy Garden and catch it.
Azurill
Marill
Castform
Minun
Plusle
Bonsly
Cleffa
Igglybuff
Jigglypuff
Porygon
Eevee
Clefairy
Happiny
Chansey
Mime Jr.
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