I loved this one... Until I realized you can dodge the diagonal slashes by just holding down, instead of down+left or right. If you guys made it that way it would've been incredibly fun.
The jump I found to be pretty much impossible to react to on hard mode when the other slashes were still very much managable. I would add maybe a tenth or two tenths of a second more to the jump reaction time.
Love the artstyle, music, and sound. Amazing job overall with this!