Good job finding a way to combine strategy and boss battles! Somehow managed to beat all bosses!
One thing that was really anoying is to wait for wheel to stop so I can send another unit. I get that this limits spamming but it's still annoying and I coudn't spend gold fast enough. Other thing to spend gold was buying and replacing units on the wheel which adds additional element of strategy but I didn't see any tooltip in game what each usint is so I could end up weakening myself. Would be nice if you could add a screenshot of each unit stats or at least a short description.