this question has been bugging me since I learned about egg moves. If you bred a cheat ditto knowing a move (example:twister) that can be bred onto a Pokemon (eg:snivy) and bred the cheat ditto with a female of the desired Pokemon, would the hatchling come out knowing the desired move? just wondering.
No, only male Pokemon can pass down egg moves as ditto is gender less it can't pass egg moves down.
Source: My Knowlege
EDIT: Then again, if you're gonna use action replay get a cheat ditto just create a cheat snivy with twister and breed it as an egg move to get a 'legit' snivy.