Really fun! I really liked the art in this game, I think the limited color pallet really helped draw my attention to what I needed to dodge. The music is also really nice! Is there a download link somewhere for that track?
With regards to the gameplay, I definitely enjoyed dodging incoming enemies, but I felt that the death boss on the final wave was a lot more difficult than dodging bats and stones. For reference, I did 6 waves. Also, my strategy was using a 2nd level to block all falling objects, and then increasing the height to give myself space to jump over incoming bats. But yeah, really nice game!!