Nice game, it feels like there is a lot of depth and complexity in here. The UI looks good and is fairly intuitive to get around. I like that the levels are small here, it helps keep it feeling focused. The ability to look around is really cool.
The different floor levels had me puzzled for a little while but once I got it it was no problem to nagivate around. Im not sure I know how to use attack/defense correctly so could have used a little hand-holding for that aspect. Perhaps reducing the number of enemies/items at the beginning would give me time to explore the mechanics with less pressure?
Nice entry overall, i'll keep playing and figuring it out :)