Rly loved this. It was a bit tough but I retained coins I got on failed levels so it was a 'negative gameplay loop' that helped me buy upgrades so I could get strong enough to beat it.
Kind of wish pure skill had a bit more of a lasting viability since I felt forced to buy upgrades at around level 3 and I think this could have been done to slight improvements w the movement. But overall I had lots of fun once I started cashing in those coins.