Thank you for your comment :). Yeah we did try to tweak as best we could given the time and limited playtesting but it's still far from balanced. We wanted to add more enemies (we even have a sprite and all for a second one, a range enemy) but we had to cut it out to focus on making this build work half decently.
P.S. : btw, one of our starting idea revolved around sisyphus and his rock :D