It's a thing of luck, you have to be very (un)lucky to get a bad egg. The easiest way is to use an Action Replay.
By using a AR and catching someones Pokemon it will be called bad egg
If you are talking about the bad egg, it does not. That's why it is called a bad egg.
It will corrupt your games' data.
no you can't find a torchic egg in Pokemon platinum
Not sure if anyone has ever hatched a Bad Egg in Pokemon Platinum as they very rarely ever hatch. Although, in other games they have sometimes transformed into invisible, shiny, Bulbasaurs. Bad eggs have a record for messing up games. You shouldn't try to hack for it.
you get it from an egg in Pokemon platinum
There are a few ways to obtain an egg in Pokemon Platinum Version. Here they are:Putting a male and female Pokemon in the Daycare that have the same breeding typesPutting a non-legendary Pokemon (excluding Manaphy) with a Ditto in the DaycareObtaining an egg from a NPC (Riley, Cynthia)
You can not get a Turtwig egg in Pokemon Platinum. But if you breed a Turtwig with a Ditto, then it is possible.
Don't hatch it unless you want your game deleted.
it doesn't hach in to anything it just freezes your game
There is absolutely no way to hatch it.
yes, it is a mansion Pokemon well you can also breed it at the daycare with a ditto, then hatch the egg