Wow, thanks a lot for giving it a try and posting suggestions!
I'm aware of the controls being sloppy, and I'm planning on improving on them, but I don't know how to code proper controls yet.
I'm still learning how to do animations, but I'll try adding basic "poof" when an enemy is killed as a placeholder so it doesn't feel confusing.
Thanks again for your kind post, really appreciate it. I'm continuing to work on this game and posting updates in its devlog if you're interested.