It's pretty easy to get a perfect score if you just stare at the minimap the entire game and systematically walk within 2 squares of every piece of the map
A suggestion for the aiming, I think maybe a slightly enlarged hit box would be ok, but if you wanted to counter balance it so it wouldn't be too easy, but still give player satisfaction, you could make it so that enemies who are in the visual effect of the blast, but aren't near the center take reduced damage.
This game takes about an hour to beat. About 10 minutes in, it is unnecessary to even actively click to gain money because you can buy the 4 idle trees that gain 4 times that amount faster than you can click. I would suggest anyone having issues to wait till they have a solid chunk of time (An hour and a half at most) and then simply beat the game in one sitting.
Pretty bad bug: If you beat a level with a certain amount of stars, say 3, and then replay the level and earn less stars on it when you complete it, your new attempt at the level overrides your original perfect attempt and the game actually removes the money you earned from the level (and the stars) originally and replaces it with the amount you earned on your new attempt.
I'm not really into this kind of game, so I got bored rather quickly, but I do realize how well made and creative this game is and I did have a lot of fun playing as long as I did, so I say good work 5/5
Very unique, Very fun. Although save would be very useful and add to the overall enjoyment of the game, also giving even more replay value than there is already. I love the diversity of character choice with the long dungeons making it challenging enough. One other thing there could be a shop every ten levels or so where you could use your acquired moneys. Overall this definitely makes it to my favorite's list. 5/5.
Thank you for report! Problem fixed.