Here are the patch notes of version 1.04:
Bug fixes
- The Level 3 song now loops properly
- Exiting the final boss now sends you to the correct position in the world map
- Fixed the issue where it was possible to pause the game when the final boss was defeated
- Fixed the issue where the Skill 8 sprite was stuck in place in Boss #2
- The spotlights, white music notes and squids now remain frozen when unpausing in Boss #2
- Fixed the issue where the big music note sound would play twice
- Fixed the issue where it was possible to unlock the You Can't Trick Me Anymore achievement without defeating the last Anenemy