Added the left-handed option in the Options menu.
note: In the tutorial the left-handed option is not available in the explanation, but it is available for the playable test.
note: The left-handed option is not yet available in casual mode.
Added the option to choose the skin color of the hands (3 skin tones) in the Options menu.
Fixed a bug that prevented obtaining the "Focus" Baton.
A bug that prevented getting 100% accuracy in some musical pieces has been fixed.