I'll reply here also then :-) I'm happy you could play it, in the browser I guess ? I developed the game with Java 8 and a few players experienced difficulties with more recent versions (on desktop); just to let you - and others - know.
I'm happy you had a good experience, indeed I believe the game requires the player to test and try, to know what to do; and then the experience starts becoming appealing. Try the class conjuror of cheap tricks, it's the most fun one I believe :-)
Hey cool, you've battled and liked some of the most powerful monsters (and so the most untested ones!), that's nice to hear. I guess the popups are about achievements and maybe suggestions (likedrink your health potion, you're in danger). I suppose going to the main menu (escape) and going back (resume) would get rid of those.