There isn't! But you can have level 99 codes.
01FFF3CF This code actually makes all wild Pokemon level 225, but they level back down to 100 after one battle.
yes, but I forget the code. Look it up on action replay youtube videos.
There isn't one get over it
no such thing
no sorry
wild Pokemon 100 94000130 fcff0000 d5fcba21 65fdecd d200000 0000000
you can do it anywhere the lower the wild pokemon's level the longer it will take
94000078 111111111
There's no Lv.98 code, you use the Lv.99 code. If you could make Doom Seeds or just raise them, of course, then you'll get Lv.98s. Simple!
You can't get it, unless you train a Pokemon to level 100. The highest level wild Pokemon is arceus which is lv80, and you need an event for that, but without and event you can only get an lv47 Dalgia/Palkia for the highest level wild Pokemon.
you need to go on Google.com and type in "wild Pokemon modifier" and you put the code in your action replay then you can get every single Pokemon in diamond!
Mew cannot be caught in the wild in Pokemon Diamond and Pearl. You need the action replay code.