Really great work on this game! The wands were creative (bubble wand was great in particular) and each was nicely tuned to have advantages and disadvantages. Enjoyed the pixel art and the sense of place you created with the towns -- that makes a big difference. The flies were tough but I was craving difficulty (makes the games last longer and makes progression feel like a greater accomplishment), so I liked it. Awesome variety of enemies. The opening theme music was also great, I stopped and listened.
I had no lag issues, gameplay was smooth. The only bug-type issue I experienced was that the boss who guards the bomb-wand went into the upper left corner and was stuck for a bit in a flip-out, and later moved into the lower right area and seemed to stop fighting. But not a huge issue in the grand scheme.
Great game!