This game was certainly unforgivable with the card dealing (And not in a bad way XD).
But honestly, I have to say, this game was amazing! It felt like I was in a professionally made game with an adventure mode to it. I loved the use of the concept you used their with blackjacks and the music and dialogue really tied it in overall as well. The different mobs and bosses as well were a really nice touch to the game as well.
The only suggestions I could probably say is to have the dialogue in the middle nextime please. I had to keep focusing my eyes away from the screen to read the dialogue and attack.
Also, maybe make the swinging animation faster perhaps? I was at level 3 and there were so much bats and I couldnt swing at them all fast enough.
Not that these were a big problem of course, but overall, this game was awesome!