>>41916315I don't I'm afraid. There are things I do remember, like if you bring a Hall of Origin Arceus to Oreburgh Mine, you can speak to a hiker who will talk more about Sinnoh's myths and give you a plate. This was also useful to me a decade ago
https://www.neoseeker.com/pokemon-platinum/faqs/191209-dowsing.htmlYou can find an additional Odd Keystone in Twinleaf Town in the little pond at the bottom.
But I had a big Prima guide that I always used where I would systematically go through everything. If someone found all the checkable event flags in the game.
https://www.pokecommunity.com/showthread.php?t=302347For example, if you edited your save to turn the starter event flag off, you could hypothetically repeat the starter selection event and get each starter. But certain events have multiple flags that trigger, like selecting your starter will determine Barry's future teams along with the other protagonist's. I've never done this before, but I imagine you would have to copy your file before checking the appropriate flags, then play the modified save, do the events again, and then copy the new content of the save like the starter (minus the altered event flags like Barry's team) to your other save. I remember having Pearl and using an Action Replay to walk through walls. Characters would be waiting at specific locations in story events I hadn't reached yet, and when I interacted with those story events, it could cause problems since it was checking off flags that weren't meant to be checked off in that order. Imagine hacking Pokémon onto your team, skipping the beginning of the game, and then going to a location Barry shows up to battle you. The flags that determine his starter would have never been checked.
