Pretty much a tie between Emerald and Platinum. Which do you prefer?
In Pokémon Diamond you cannot catch Rhyperior however you can find wild Rhyhorn for capture in Route 227 and in Stark Mountain and then you can evolve it into Rhydon at Level 42 and then you can attach the Protector item to Rhydon and trade the Rhydon over to another game and it will evolve into Rhyperior additionally you can catch wild Rhyhorn in Routes 227, 228 and in Stark Mountain and then you can trade it while it has the Protector item attached in order to evolve it into Rhyperior.
whenever it can catch wild game.
you can't catch monferno wild you have to evolve it from a chimchar
You cannot catch wild Chikoritas in any official Pokemon game.
To catch use minno or a bunch of worms. But the best way to catch them is in the evening on a flyrod.
catch a kadabra then trade it. u cannot catch this Pokemon in the wild. IDIOT!
emerald
the battle frontier for 48 BP and held by a wild sneasel or rhyhorn
No you can only get him by obtaining a Oswalt in the beginning of the game, not wild...
Either cheat or transfer it from a GBA game. You cannot catch Latios in the wild without cheating.
You cannot catch Tepig in the wild. You get it from Professor Juniper at the beginning of the game or have someone trade it to you.
You cannot catch Chimchar in the wild in Pokemon Pearl. You can only get chimchar either at the beginning of the game, or breeding a chimcharm, infernape, or monferno. Otherwise, you need an Action Replay to catch a chimchar in the wild.