Yay! Having a pony goddess for a mom rocks!
Buuuut....then this would destroy the whole purpose of Mother 3.
You know a while back, I was talking with a guy about theories of how Luna became Nightmare Moon and they were ridiculous crossover theories. I decided to play along and say that Luna was modified to become Nightmare Moon by the Pigmask army by making a deal with Porky that she allow all them to use Equestria's creatures for Chimera to use if she was successful! Since then, I've been thinking about what would happen if the Pigmask army had a secret base in Equestria.