I want to play through platinum with some kind of "challange" I have already beaten it doing a fighting/flying dual type and i have also beat it doing a normal monotype. So now i want something different i was thinking maybe all baby pokemon but im not sure yet so i would like to see what ideas people can think for me or tell me challenges that you have done before anything.
Have you already tried going through without catching Pokémon at all, just your one guy you start with?
There's plenty of variations on that too, such as being able to catch as many as you like but only keeping one in your party at a time. Or limiting yourself only to the first six Pokémon you catch. And so on.