I apologize for repeating what the usual comments have been saying:
The visual design is mostly amazing, with only the obstacles needing more contrast from the background to indicate their position better. Many times, my deaths felt at the fault of design rather than my own skill. For example, there's a bug on the web version that halts the player's movement if they click too often. Considering clicking is a core mechanic in the combat, I felt annoyed at times. I know this competition had a short deadline, so the music was actually great and I see a lot of potential in the complete aesthetic. I would have appreciate a few sound effects to really make each hit feel like it had more of an impact.
I believe I may have gotten more out of it if I had downloaded it instead, but in total, I believe this is a fantastic entry. I would appreciate any feedback on my entry as well!