Wow, that's quite precise feedback, thanks for it! It's great to know you felt the urge to get better at the game, and those suggestions really seem that will make the game quite better, along with the bugs reported.
I'll try to work on a update with the bug fixes, more enemies, and hopeful a more interesting gameplay by then. Right now I'm a bit busy, but it is about time I started to really update the jam versions of our games. Once again thanks for the feedback, and I'm glad you enjoyed playing so much!