Yes it does!
you need a action replay code it is 2345455ts125 it does not work
its i don't no its impossible to do that but it will work on pokemon HEARTGOLD
the code only works on pearl and diamond Mewtwo
no only in pearl and dimoand
ninja is the code if it dosnt work you have to be a member
yes there is there is lots some don't work but i suggest supercheats.com (25 pages of AR codes for Pokemon pearl and dimond!) NOTE imond codes work for pearl!!! And i suggest neoseeker.com too. HAPPY CHEATING :)
some times they do or sometimes it will just have a different code
i dont no but u need action replay 4 it 2 work
k
you need to press R+B
you do all the painstaking work of training them or you could go to youtube.com and find the action replay code
Use them on ur weak Pokemon and get them to lv.100