An Action Replay DSi should already have the complete Pokédex code for diamond and pearl already built in.
Yes there is. It should be on the list of codes you start out with on your Action Replay. It will make your Pokedex 100% complete and have all the information on all the Pokemon.
no.you just need to complete the sinnoh pokedex to migrate.
A Pokedex cheat
In the National Pokedex in Pokémon Diamond number 485 is the Pokémon Heatran. He can be found in the volcanic caves of the region.
You can if you use action replay :P If you don't use one, then it is impossible to complete without trading as there are only certain Pokemon that can be caught in diamond and vice versa with diamond.
You only have to see all the Pokemon (excluding event legendaries) to complete your PokeDex. So if you can't migrate, then just battle your friend who has a Pokemon you haven't seen yet. Or if you have no friends that like Pokemon (like me), you can purchase Action Replay.
with action replay
If you want to complete the pokedex, the AR has the code. otherwise, go to pokesav.org and start making your own!
get an action replay, get the fill pokedex cheat, then u have full pokedex!
No there is not however you can get a action replay code for finished pokedex
get an action replay, get the Pokemon modifier and pokedex cheat, then catch sqiurtle.
uh no. You can't reverse it to 1 or anything. Its permanent and will stay there.