Go to the old cheatu at night and go up stairs and go to the top front room then go to the left room and then press A on the T.V. and rottom should appeared.
P.S. get some quick balls to get rottom
There is no key!
No he doesnt.
you cant because you need to catch it.
You must trade from D/P/Pt.
you have to go into eterna forest go into the house were the plants tht can be cut are and look at the tv upstairs at 2 in the morning game time and you will battle rottom he will be lv 20 hope i helped:)
go to the eterna city then go to eterna forest then go to the old chateau then go to to the room with the tv and press a on the tv and rottom will appear all so to do this you need national pokedex
u need to go a night in the old castle and find a TV ,go to the TV and click A he will apper.
Go to the old house in etena forest at night and go into the room with the tv and talk to it.
yes but giratina, shaymin and rottom special forms will not appear
At night, go into the Old Chateau in Eterna Forest. In a particular room, press A while facing a TV to battle Rotom.
Rotom can be caught in the Old Chateau (In the forest north of Floaroma Town). To get it to appear you need to go to the tv inside the Chateau at night and inspect it.
No you can catch rotom in the big mansion on eterna forest and try to find a tv and knock it then rotom will appear [you will need cut]