The artwork in this game is excellent all around. I like the environments as well as the character and enemies. The audio all works well too!
There's a good number of mechanics, all of which can be useful. As the mobs got bigger and bigger, I found myself mostly using the ranged attack, and occasionally dashing to escape. The time-dilation mechanic is a great idea, but due to the fast drain, I didn't find it to be very useful.
I did find the difficulty to be a bit on the high side. Without any healing or checkpoints, I gave up after two tries. I made it to the boss, and found it was hard to tell where she was at any given moment.
I got a few hits in thanks to the parry, but she made quick work of me...
One other stray thought is that the combat could use a little more "umph," whether that be stronger sound effects, visual cues, or other feedback. It was hard to tell when I was taking hits sometimes. Scoring hits on the enemies was better, especially the ranged attack. The melee attack could probably be given a little extra impact.
Seeing as this is labeled "prototype," I can imagine this getting really good with additional balance and polish! As it stands, this is still a great jam game! Nice work!