I don't know if there is a code. But you can complete de Dex by seeing all Pokemon in platinum. All Sinnoh-dex Pokemon can be found ingame.?
Diamond and Pearl Sinnoh Dex: 46# Wormadam Platinum Sinnoh Dex: 46# Wormadam
in sinnoh dex it is togetic but in national dex it is igglybuff
Swinub is #203 in the Sinnoh Dex in Pokémon Platinum.
In the sinnoh dex: porygon In the national dex: sunflora
go and see all the Pokemon in the sinnoh dex
pelipper is the 120th Pokemon in the platinum sinnoh dex.
Diamond and Pearl Sinnoh Dex: 46# Wormadam Platinum Sinnoh Dex: 46# Wormadam
in sinnoh dex it is togetic but in national dex it is igglybuff
Swinub is #203 in the Sinnoh Dex in Pokémon Platinum.
no he isn't in sinnoh dex
yes but sinnoh
There are 210 in the sinnoh dex and 490 in the national dex
In the sinnoh dex: porygon In the national dex: sunflora
go and see all the Pokemon in the sinnoh dex
In the Sinnoh dex: Ambipom. In the national dex: Kadabra
you see al the Pokemon in sinnoh
carnivine