Oh I totally missed that :D seems like a good idea in theory, though.
I think it's pretty difficult making a clear tutorial. I got some friends to playtest my game, and everytime I got some feedback I had to change the tutorial, haha :D
Yeah I couldn't make the game audio sync when building for mac or webGL, sadly...
But I've got a video where I play through the game, if you wanna check it out :) https://youtu.be/qr6xbl-GDQ4