Beldum is a cute Pokémon of the Steel/Psychic type. Too bad it cannot learn any TM's. You're stuck with Take Down. You can get one Beldum by going to Mossdeep after beating the game and there's a Pokeball with a level 5 Beldum! It evolves into Metang at level 20, which evolves into Metagross at level 45. Beldum is quite cute. It has a little red eye.

Beldum is a tiny genderless Pokemon, and its evolved forms are also genderless. You cannot breed Beldum because there is no Ditto in Ruby/Sapphire.

Beldun hasn't appeared yet in the anime.