Leo walked his character out of the truck. The usual "Dad's getting you a Pokémon" cutscene didn't trigger. The movers were gone. The houses were empty. He walked into his room; there was no clock to set, no poster on the wall.
Legendary Pokémon like Mewtwo, Articuno, and Zapdos are not available in Omega Ruby; you must transfer them from Pokémon X or Y . Pokemon Omega Ruby V1.4 Download