Thanks for your comment. And the music bug report!

You're right about the shield. We actually designed it that way for habtic and feedback reasons, so the players have to avtively give an input to use it. But it would have made more sense if we implemented a mechanic like stamina or a cool-down - unfortunatly we didn't have the time in the end. 

We're glad you liked it. We had a lot of fun making it.

Thanks you so much! ^^