Thanks for the feedback and I'm glade you had fun playing it.
The throwing enemies do indeed need tweaking to be less punishing, they still hit me nearly all the time and I made them.
As for the boss, should I further work on the game, I'm planning to give him a few more punishing moves (such as a parry he'll only use when hit too often too quickly) which in turn would let me greatly reduce his health pool whilst still keeping the challenge. Because yeah, right now he can just be rushed with little punishment once you know how, hence why I inflated his health as a bandaid.