level 42
You get your Rhyhorn to evolve into a Rhyperior.(Pokemon 188 is Rhyperior)
Rhyhorn is one of the Pokemon that take a while to evolve. You have to level it up to level 42 in order for it to evolve into Rhydon. If you give Rhydon a protector and trade him, then he evolves into Rhyperior.
Rhyhorn
You can either go to victory road and catch it there or evolve a rhyhorn at lvl 42 Hope this helps :)
The evolved form of Rhyhorn is Rhydon
if he levels up he will evolve
Rhyhorn evolves into Rhydon at level 42 in Pokemon Emerald Version.
..........level rhyhorn to 42.....get a rhyhorn from safari and evolve it to rhydon
you can see a rhyhorn at Pokemon league route 227 route 214 stark mountain
Level 42.
Level 42
Rhyhorn will evolve at Level 42.At level 42 in Rhydon.Rhyhorn evolves at level 42.