Don't get me wrong, I enjoyed the game and ended up playing all 40 levels. I just have to agree with everyone that the controls are anything but smooth.
Here's a bug! If you drag an equipped item over another item, it replaces it the slot with that item even if that item isn't the right type. For example, if you drag an equipped helm over a piece of body armor, it will replace the helm with the body armor in the helm slot which allows you to equip up to 6 body armors!