The TAB button should now work too!
Thank you! But I noticed a few more bugs:
1) I started the tutorial, and in the middle the music stopped playing. The sounds were working and the music ended/stopped.
2) I got to the end of the tutorial, and didn't understand what to do next. Maybe it would be better to make a "Start a new game" yes/no choice at the end of the dialog?
PS: Sorry for my English, this is a translator.