You have to have national pokedex.
You have to finish your Sinnoh POKEDEX
Once you have the National Dex, go to the Pokemon Mansion and speak to Mr. Backlot. He'll tell you which Pokemon is in Trophy Garden. You'll need to find it in Trophy Garden with a Pokeradar.
You need to talk to the Mansion owner Mr. Backlot and B4 you do its best to save then talk to him and keep saying yes to his "are you envious" questions then he will say he saw this cute eyed Pokemon run up to him and give him a smooch on the cheek and then the dude next to him says that, "that Pokemon doesn't exist in the trophy garden and then a little whispering goes on and he leaves then Backlot says he only speaks the truth of that Pokemon being in the trophy garden..... if you don't like the Pokemon that Mr. Backlot said then if you saved B4 you can turn it off and wait till he says the next Pokemon and keep doing that until you get ditto and it may take a while I started looking for ditto 2 days ago but ive also stopped and did things around in the day so keep trying! I know i will cuz i need a ditto!!! :( Hope it helped!!! =3
There are 2 ways to get eevee.The first way is after you get the national dex you go to harthome city and you go to the house beside the Pokemon center.But you have to have room in your party and walk up to bebe and answer yes to her question.And she will give you a free eevee.The second way is you go 2 the Pokemon garden and talk to Mr. Backlot and if your lucky he might say that there was a Pokemon in the garden named eevee.And that's the way you get eevee. hope this helped from eevee654.
He tells you after you obtain the national Dex , (you have to get 200 Pokemon in the sinnoh Dex before obtaining the national Dex) then go to the Pokemon Mansion and go in to Mr Backlots office and talk to him , he will say that he found some rare and new Pokemon in the trophy garden . Then use the white flute & poke radar you will have a better chance of finding it, otherwise just ride around for half an hour until you have battled everything common that attacks you, then use the white flute.
it says nothing
Mr backlot will tell you about a new Pokemon in his garden everday after you obtain the nat dex
Different Pokemon are seen on different days.
Once you have the National Dex, go to the Pokemon Mansion and speak to Mr. Backlot. He'll tell you which Pokemon is in Trophy Garden. You'll need to find it in Trophy Garden with a Pokeradar.
In Mr. Backlot's trophy garden. However, it is rare to find. It's a daily Pokemon so you don't need him to tell you there are ditto in his garden - just keep trying.
in the trophy garden you can talk to mr. backlot and he'll tell you a story just keep answering yes then soon he'll tell you the Pokemon and if you're lucky it'll be a ditto but sometimes you can run into the ditto without it being the Pokemon mr. backlot told you lucky you!! =]
You can catch a Krickitot at Mr. Backlot's Pokemon Mansion in the Trophy Garden.
Get it off a wild pikachu, in mr backlot's garden.
Trophy Garden in Pokemon Mansion on Route 212 [talk to Mr. Backlot after you get the National Pokedex. Mr. Backlot is in the mansion, I think]. Hope this helps! Master
In the Trophy Garden behind Mr. Backlot's house.
Mime Jr. can only be obtained in the Trophy Garden south of Hearthome City, talk to mr backlot inside the mansion every day and he will tell you what rare Pokemon is in his garden that day,
Happiny is one of the daily Pokemon from mr. backlot's trophy garden. You can also breed chansey.
After obtaining the National Dex talk to Mr. Backlot inthe Pokemon Mansion and he may tell you he found Porygon in Trophy Garden. (This Pokemon he mentions changes every day.)