I have made the following updates:

• The controller icon for the pause button during puzzles now changes according to key bindings.
• The button for deleting save data has been officially implemented in the options menu and removed from the title screen.
• The mechanism for displaying key help has been improved.
• Optimization for Steam Deck compatibility has been carried out.
• Interactive tutorials now work with button inputs.

I have also made the following fixes:

• I have applied localization fixes received from users.
• I have made minor graphic adjustments.