No.
yes
Wynaut
i don't have Pokemon emerald, but the answer is always the same. not how long. how many steps. walk ALOT and the egg will slowly start to hatch
y3bufat6h2g6vjto2g6
no such thing
Get one starter, make an egg of it, then trade it to your friends
if by neutral Pokemon you mean no gender like Beldum you can breed it with a ditto.
keep it in your party, make a fire Pokemon as the leader so it will take less time to hatch
Egg.
No.
a regi cannot have a egg in any Pokemon game because they are nongendered
yes tou can
yes
yes
Wynaut
No, because Rayquaza can't breed. None of the legendary Pokemon in the game can breed at all.