Platinum. I have all 3 events on it: Secret Key, Member's Card, and Oak's Letter. My Trainer is called Lucas, with an Empoleon to match his appearance in Platinum. My rival is Barry, with a Torterra to match his scarf. "Stuck" on the Elite 4, trying to decide which level my Empoleon should be in the hall of fame at, and possibly other team members, possibly all Sinnoh Pokémon. My Empoleon has an Impish nature to match it's personality on Mystery Dungeon. Won't be starting a new save and deleting all this. I once found a defect on my DSi, but Platinum was safe as ever. If I had to take my game for a new one, all my events will be gone! So glad!