Thanks for playing. I'm not married to the battle music myself but I haven't found a suitable replacement yet.
The tutorial is indeed almost impossible unless the player figures out that they start with a technique, the secret shield or the wait initiative buff. Then again, that's kind of the point. Being able to fight back against nightmare creatures is already a power fantasy in my opinion.
As for the length, I made the prologue as concise as possible but I haven't decided on how long the demo should be as a whole. Either way I've got a lot of work ahead of me so I appreciate the interest.