How do I activate the dragons den side quest in Pokemon Soul Silver gotten all 16 badges?

You don't need to activate the Dragon's Den side quest in Pokémon Soul Silver. It's not a side quest that you need to trigger or activate. It's always available once you've defeated the Elite Four and become the Champion.

Here's how it works:

1. Beat the Elite Four and become Champion: This is the only prerequisite for accessing Dragon's Den.

2. Travel to Dragon's Den: After defeating the Elite Four, you can freely travel to Dragon's Den, which is located on the north side of the Sevii Islands.

3. Train your Pokémon: Dragon's Den is home to many powerful Dragon-type Pokémon, including some of the most challenging trainers in the game. Be prepared to train your Pokémon to a high level before attempting to challenge these trainers.

It's important to note that while you can access Dragon's Den after becoming Champion, the trainers within will be much stronger than those you encounter during your regular gameplay. It's recommended to train your team thoroughly before tackling the Den.

Do you have any other questions about Pokémon Soul Silver or Dragon's Den?