Why You Can't "Start Over":
* No New Game+: Pokemon SoulSilver doesn't have a New Game+ mode that lets you replay the game with your old Pokemon or progress.
* Save Files: The game saves your progress to a single save file. Deleting it would completely erase your game.
What You CAN Do:
1. Start a New Game: If you want to experience the game fresh, you'll have to start a new game file. This will completely reset your progress, so you'll be back to choosing your starter Pokemon.
2. Trade Pokemon: You can trade Pokemon from your SoulSilver game to another Pokemon game (like Black/White, or even a different SoulSilver cartridge if you have a friend) to keep some of your favorites. You can then trade them back into a new SoulSilver game once you've completed it.
3. Try a Different Game: If you want a fresh experience with a different storyline, characters, and Pokemon, try a different Pokemon game altogether. There are many to choose from!
Remember: There's no way to keep your progress and start over in SoulSilver. If you want to play again, you'll have to start fresh.