no u do not as long as u know the national number of the Pokemon u want.
Get the pokemon modifier the type the # mew is in the national dex then press l then go to grass and you should encouunter it
In Platinum dex' its Dusknoir in National dex' its Sunkern.
The answer is "No". You only gotta know it's number in the National Dex, that's all.
In Pokemon Platinum to get the National Dex you will need to have seen all 210 Pokemon in the Sinnoh Dex then talk to Professor Rowan and then after a while Professor Oak will give you the National Dex!
First open up the calculator on ur poketch, type in the Pokemon you wants national dex number, then enter the level u want it.
go and see all the Pokemon in the sinnoh dex
You complete the shinho dex first and then you get the national pokedex
According To The Platinum National Dex, Lickitung Is #108.
In Pokemon Platinum Version, there are two Pokedex'es, the Sinnoh Dex, and the National Dex. In the Sinnoh Dex, the 151 Pokemon is Manaphy. In the National Dex, the 151 Pokemon is Mew.
Cranidos in the Sinnoh Dex, Fearow in the National Dex
National Dex: Igglybuff Sinnoh Dex: Togetic
spiritomb in the sinnoh dex lickitung in the national dex