Achieving the "Metamorphosis" achievement in Ringing Tides may involve specific tasks or challenges based on the information provided. Here is a possible guide:
Answer: Just complete the pufferfish challenge in Shiyuan.
1. First, we open the map and go to the location above the city boundary of Jinzhou.
2. After arriving, you can see the NPC Shiyuan and have a conversation.
3. After the conversation is over, you will enter the challenge and become a pufferfish to swim with the buoy.
4. Finally, we can achieve the Metamorphosis achievement by following the beacon to complete the challenge.
The above is all about how to achieve the Metamorphosis achievement in "Crying Tides". For more game strategies, please click on the source code website.