Thank you for playing!
Yes, unfortunately the character looks too near in the inventory. I'll see into that. But the ESC bug is fixed already :-) The fix will be uploaded shortly.
The Retry button was a thing which I thought to have fixed already but will go into it again. The demon itself seems hard when you have no weapon but he is defeatable unarmed, too. And you can find weapons in the game. Have you talked to Agnieszka? ;-)