get a magcargo and put next to the egg in ur Pokemon thing
you run around sinnoh and it will hatch into riolu.
You have to have the egg with you and walk several thousand steps.
it takes 600099084904 steps to hatch riolu which in the fastest time is at least 10 minutes
First you get it from Riley, then you have to walk between 3000ft - 4000ft somewhere in there
it means a rioulu will hatch from it
To hatch an egg you just have to walk while you have it in your party, it takes a certain number of steps to make it hatch.
You don't see it. You have to hatch it from the Egg you received from Riley on Iron Mountain.
On Iron Island, a guy named Riley will give you an egg. It will hatch into Riolu.
You have to hatch it from the egg you received from Riley at Iron Mountain/Iron Island
Cynthia will give you an Egg that will hatch into Happiny. Riley will give you an Egg that will hatch into Riolu. The Day Care will give you an Egg that will only hatch into the same Pokémon species as the female, unless you’ve bred a male with a Ditto.
on iron island you will meet a guy called Riley help him beat all the team galactic grunts and he will give you an egg from which riolu will hatch from
riolu