First, obtain the national Pokedex. Then, on any Wednesday, tune in your radio to the Pokemon Music Channel. Walk through the grass with the radio playing the Hoenn Music, and you may find a Minun.
route 29,33,36,37,38,39,46
its easy on Wednesday turn on the hoenn music then go to the right route following by hoenn music try the route thing first
Routes 1-5, 7, 8, 11, 14-18, 29, 33, 36-39, 46, 48, and the National Park by using the Hoenn Sound.
Minun can be caught in Pokemon Omega Ruby by seeking out these powerful Pokemon and then unlocking their incredible potential.
You can't catch Rotom in heartgold.
you cant catch him in heartgold you can only get him in soulsilver
You have to upload it from a previous game. In Pokemon emerald, you catch it right above Slate port city.
You can't catch him in HeartGold. Only in SoulSilver. In HeartGold, you catch Kyogre in Embedded Tower. If you transfer either Kyogre or Groudon to the other game, you can catch Rayquayza
OK, so you got a plusle now for the rare one, minun! Method 1: Go to the throphy garden after you get national dex. Talk 2 mr backlot until he says that there are cute minun in his back yard (If he see's somthing else turn off without saving and do it again until he see's a minun) Run about in his garden and you should find one! Method 2: Migrate it from ruby, sapphire or emerald! Happy minun hunting!
Catching Minun is relatively easy though finding it might take a bit of time. Minun can be found in the Trophy Garden of Pokemon Diamond and Pearl. It also appears as a swarm on Route 6 on Pokemon White. And finally Minun appears on Route 5 of Pokemon X and Y.
You can catch Ekans in Pokémon HeartGold in the Safari Zone in the Marshlands area.
you can catch lugia in whil islands in heartgold