In Pokémon HeartGold, Rhydon needs to be traded while holding a Protector in order to evolve.
you cant evolve it on heartgold u can only get it in a sinnoh game
Never it only evolves in diamond, pearl, platinum, heartgold, soulsilver, black and white.
Rhydon doesn't evolve by level. When the Protector is attached to Rhydon, trade it and it will evolve to Rhyperior.
Rhydon evolves into... RHYPERIOR!!
Rhydon evolves into, ---------{rypherior}
Rhyhorn evolves into Rhydon at Level 42. Rhydon can then evolve by attaching a Protector to it and then trading it.
Rhydon is not able to evolve in FireRed.
Rhydon, in Pokemon FR/LG, does not evolve.
Rhydon evolves when you trade it while holding a protector.
No, Rhydon doesn't evolve in Pokémon Sapphire.
Rhydon cannot evolve in Pokemon Silver/Gold/Crystal.