Things You'll Need
Instructions
Visit Fallobor Town by walking down Route 113 or 114. Fallobar Town is located close to Mt. Chimney.
Walk left to the Fossil Maniacs house when you arrive in the town.
Talk to the Fossil Maniac. He will tell you a Pokemon fact and lead you to dig a new hole.
Catch one of the dittos in the new hole the Fossil Maniac digs. There are usually several dittos here, between levels 38 and 48.
View the map and travel to the Day Care Centre.
Deposit the Swampert and Ditto to breed.
Wait for the Day Care owners to phone and tell you they have a new egg.
Pick up the egg, and walk for 1500 steps. The egg will crack, and a Mudkip will hatch.