well in one area when u r done the game in platinum you can catch lvl 99 magikarp. The area is the relax area or somdin, anyway yeah. But i dont know about diamond.
Train your pokemon.
The highest a pokemon could be is level 100.
level 100
ergfergfs
No, you cannot.
any level up to 100
There is no such code for that. The game can only allow you to have Pokemon up to level 100. No Pokemon over level 100 exists.
You can't, even with hacking.
easy just cheat
No Pokemon can reach a higher level of 100 in Pokemon diamond or pearl even if you use action replay, i don't think you can get it sorry :( nintendochick knows all!
beat him with a level 100
hmm that a tough one... i think its level 100! wad ya think happens?!?