Any tutorial for creating legendary pokemon event battle?

[neltazero]

I want to include those unavailable legendary pokemon into Heart Gold, but I can't seems to figure out how to do it. Is there any useful tutorial for creating such event? Also, is there any tutorial/guide for creating the script for NPC giving item?

[Splittah]

I would ask Roland about that. He made a version of Pokemon Platinum where you could catch all 493 Pokemon without having to download events or trade Pokemon. Check that out here. Or you could just download his in-progress HGSS version of it. Either way, your call.

[neltazero]

So anyone else know how to do it? Can help?