The folks at Did You Know Gaming have put together another Nintendo-themed video focusing on Pokémon Ruby and Sapphire for Game Boy Advance. You can check it out below, followed by the official description:
Did You Know Gaming takes a look at some facts, secrets and Easter eggs from Pokemon Ruby & Sapphire! These Pokémon games were made by Game Freak and published by Nintendo outside of Japan for the Game Boy Advance (GBA). The games would later receive and update in the form of Pokemon Emerald, and were even remade on the Nintendo 3DS as Omega Ruby and Alpha Sapphire. This episode starts off with an interesting Pokemon Easter egg about the Aggron line and its connections to Pulgasari.
Source:Pokémon