Dang, that rabbit is just a crazy increase in difficulty. Game got a little hectic, but upgrades made them doable. Then along comes 3-damage-a-hit rabbit. I figured it would be one, maaaaybe two damage a shot due to their volume, but nope.
You should really remove the click-and-drag mechanic from your games. It comes up rarely enough that I spend time clicking to no avail, as it doesn't come to mind during gameplay that is otherwise point-and-click.
I wish there were a final challenge campaign where you could switch between heroes, having maxed them in campaign, or perhaps all three firing with your choice of spell in each slot.
I didn't get the badge upon completion, nor after reloading the page However, once I got all the stars and beat the final level again, the badge appeared.
-Screen doesn't fully lock, if you hold space instead of tapping the screen scrolls.
-On an early level- 3, maybe?- and a bounce from an armored bunny stuck me in the ceiling. I can't move. Totally stuck.
Just my first thoughts.
Goes from slightly challenging to downright negligible in difficulty when you realize that no enemies have any maxed stats; just ignore range and max (or near-max) the others!
I think an additional autocast ability which allows spells to be cast when offline (unless that's just too difficult to have the offline calculations run). By reducing the speed of mana regen massively (think 90% reduced), long AFK periods aren't wasted as much.
The swimming really needs improvement. I like the game, it's a solid series. However, the swimming is too slow on moving and maneuvering, so other than the boosted swimmers many areas are unnecessarily frustrating, especially once the lag sets in.
Another bug, pat what other comments are saying: Money upgrades are invisible. When they become available I can click "Quik Buy," but I can't click individual ones or even see if therre are upgrades left to buy.
We will be updating the game soon to fix all known audio bugs. Hopefully this should correct your issue! EDIT: SOUND BUG NOW FIXED :D