Your best bet would be to use the "all Pokemon shiny" code for your game then go fishing in the Resort Area for the level 100 Magikarp that can be caught there.
In Platinum, that is.
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A yellow Magikarp is a "shiny" Magikarp. The odds of finding any Shiny Pokemon is 1 in 8,192. Unless you use an Action Replay code, it will be VERY difficult to find one.
yes you can get shiny Pokemon with action replay
You have to keep the action replay code all shiny Pokemon activated or else you can not keep youre shiny Pokemon. You have to keep the action replay code all shiny Pokemon activated or else you can not keep youre shiny Pokemon.
There are codes for some stuff and there is a code for finding shiny Pokemon in the grass withought using the pokeradar but idk the code
You can get a shiny victini by using the action replay's Pokemon modifier by selecting him from a list of Pokemon names and then you enable the shiny wild Pokemon code. And you can choose your own level from the level modifier.