any DS emulators you can find
You find it in mt.cornet and u find it right beside the adamant orb for palkia and dialga
on a Pokemon event or cheats Oak's Letter (L+R) 94000130 FCFF0000 62101D40 00000000 B2101D40 00000000 0000B5D4 00000009 0000B5D8 00000000 D2000000 00000000
what you need to do is you know, the small pond beside the grass in the back, well you go there and you kiss Dora
in new moon island.you can go there by doining the Nintendo event or by action replay. FYI: its beside(east)the full moon island(the place where you find cressilia)
Go to Galatic Eterna building, then g oto the space in left hand corner beside the TV and yellow/black square device then press A, Enter and enjoy.
the girl in the place beside hearthome city
in platinum go to snowpiont city there will be a clown to your right [beside the Pokemon center] good,luck
go to the building beside the gts talk to everybody
beside the ribbon house
the one beside celestic town
in the house beside enterna citys gym
shadow tag is an ability of wobbuffet. he can be caught with pokeradar beside the lale near twinleaf
Trade from Pokemon pearl,diamond, or platinum. Or find a fossil using rock smash ok the rocks in ruins of alph beside violet city... A fossil may take quite some trys, so don't give up after breaking a few rocks.
Floramora Town route beside Hearthome City Pastoria City
You find it in mt.cornet and u find it right beside the adamant orb for palkia and dialga
I only know that in Platinum If you swim in the lake beside the Battle Frontier and go upwards, You'll Reach Stark Mountain where Heatran will be available and that you can get Cresselia somehow but I don't know any Secret ones in Diamond unless you include ones that you need the AR for(Darkrai, Shaymin, Arceus ETC.) and ones that you need the old games for(Regis) P.S. I think you can still get Heatran and Cresselia in Diamond Though.
Drifloon. Go to the valley windworks (beside floroama town) on a Friday and you will see a purple ballon Pokemon. Go to it and press A. That Pokemon is Drifloon.