Game looks very nice. Fortunately I am running a high-end rig and didn't suffer of framedrops others tell about, so everything was smooth.
Attacking felt a bit weird, you have 3 swords but it feels like you just have one(does this even make sense?), if an enemy is too close you can't kill it and sometimes it felt like it wouldn't go where I wanted it to go, a crosshair I think would have fixed that.
This looks like a cute game, it felt like music wasn't very suited for it, it felt like serious while game looked happy and cute, but it was good.
Also jumping, you jumped just enough to be able to go on another block, jumping just a little more above the other block would have done it.
Enemies could spawn on top or near enough to kill you.
Game overall was pretty nice, it fits the theme perfectly.