Interesting sandbox game. The achievements are a fun way to keep the player exploring more (add the achievements to Wavedash too could be a good idea)
The controls are confusing unless I open the instruction page to read. I didn’t know how to stop playing music for example. It would be nice to have the instructions in the “Pause”-mode too, or some on boarding to help the player get started. (It’s funny how Merlin taps with his foot in pause mode, haha).
The game has a lot of charm with unique aesthetics and several instruments. Relaxing game, good job!
For people not being able to start a new island, I had to write a longer name, and restart the game once for it to work.