The game is out a week. Because there are now plenty new players I got a lot some bug reports and improvement ideas.
While some of them will take longer I hotfixed a few already.
If you have further ideas to improve the game or found some bug, just reach out to me on social media. Best place to get in contact is twitter ;)

Improvements:

• The tutorial is now easier to find, so new player know what to do right away instead of just clicking around
  
• If you retry a puzzle you have a better transition instead of staring at an empty board
  

Bugfixes:

• Some buttons were partly blocked by objects in the background. Now everything is easily clickable
  
• Fixed some typos
  
• On the demo end screen 2 songs were playing simultaniously
  
• Some special levels hasn't been unlocked although the requirements were fullfilled