Just wanted to say I'm really enjoying the game. Playing on Mac and having a blast, though something is very odd with mouse movement on the main screen (the mouse moves jerkily, but moves fine on actual levels).
The art is fun, the dialogue is really amusing, and the difficulty is not too painful. Fun without being frustrating.
The only thing's I think could improve it would be:
(1) When an item/character is locked, some indication of what you need to do to unlock it would be very nice.
(2) The level HUD needs some way to tell you the fireball/freeze/death blow chance, so that you can have some chance of guessing what will happen on an attack.
(3) The dice tracker overlaps the health/armour bar, so that you can't see how much health you have when you have around 10-12 total hearts. You could put the dice higher up, or behind the hearts maybe?