To use a number cheat you must have an Action Replay
no.
Bidoof
jynx ..
You can use the GTS in Pokemon Platinum after you get the first gym badge from the Oreburgh City gym.
Migerat it or trade it. You can't use the cheat card on Pokemon platinum.
there is no more masterballs in Pokemon platinum but not if you use cheats
If You Want A Deoxys In Pokemon Platinum ,Migrate,Trade,Or Use The Action Replay Pokemon Modifier.
Use POKESAV to get an egg, and hatch it in Platinum
yes you can use action replay on Pokemon platinum
The HM Whirlpool is not obtainable in Pokemon Platinum, for there is no use for it during gameplay.
use the Pokemon modifier
use a repel