If by cheat, you mean an Action Replay code, then yes.
But if you mean in game, then no.
u can get all of them...
There is no cheat for catching all the Pokemon on Pokemon platinum. it's all down to hard work and persistence.
find them in grass
you need the modidfier cheat code for it.
Cheat, trade, migrate, catch
u have to use a action replay
Nothing happens. Get over it.
you cant in platinum but you could trade from Diamond and Pearl or another Platinum.
yes,my friend has one.
really long
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One way is to get all possible Pokemon in Pokemon platinum and migrate all the remaining Pokemon from another region. Another way is to use cheat like an action replay