I don' t know if that´s just me, but the circles need to be almost freeky small which gets hard to do with a mouse imo. Might just be me though! Love the tower defense. Wish you could attack the enemy's base.
We tried to find a limited loop size so players don't just circle large chunks of the screen at once, but admittingly we just did not have the time to balance things at the end. It's been a great learning experience and we hope to have more time for that next jam. Thanks for the feedback!