First of all I gotta say I'm impressed at this awesomely inaccessible game you've made! But you should really make a companion "movie" that has all the cut-scenes so that the people who can't beat the game will still get to witness the great voice-acting and animation. Also you should consider putting in a mercy skip function after you die like...30 times.
Second, here are some tips: You really need headphones because you must turn towards the direction of the sound until it is in both speakers (aka in front of you). For most of the "180 degree" mode I was able to just hold down the direction I heard it coming from and then attack/block at the right moment.
Swordsman: Just turn in the direction he is coming from and attack when he's close, no need to block. This is a good practice level to get the timing down.
Mace: block him twice, then immediately attack
Dagger chick: Block her twice in a row (don't forget to turn in her direction each time). After that she'll step back and make some sexy comment. When she comes again just block and attack immediately after to hear her lungs fill with blood.
Canis lupus: There are 3 of these magnificently corpuscular creatures to kill. They'll bark/arf in one direction and then start growling in another. Once they start growling you can attack in their direction and kill it.
Archers: Block as the arrow gets loud. There are 8 total arrows to block before they charge with daggers. Just block and attack immediately after for all 4 of them. Yea it's a total pain in the ass...
Gangbang: Fyi I counted like 15 of them I think...good luck
Centaur: A total tease, he'll attack and then trot away. Eventually he'll attack continuously while moving either left or right. You gotta block and immediately attack after each while keeping him in front of you. I think he'll be significantly less alive after the 5th attack.
Final boss: Kinda simple but fun. Block the fire like an arrow. He'll send some crows to confuse you while he teleports all over the damn place. Listen carefully for him to teleport close and then attack in his direction.