This one is a tough one for me to rate, to be honest.
One on hand it's very, very prototype-y. There's a massive hitch/lag spike every time you hit an enemy. The balance is poor, there's only one level and an incomplete menu. The UI is minimal and you can't move the camera.
In other words, it doesn't feel right to evaluate it as a complete game because that's not what this is and clearly isn't what this is meant to be.
The concept is good, the basic mechanics all work, and taking on this type of game for even a two week jam is impressive. I'm not sure if the art is meant to be placeholder but I actually really like the style and wouldn't mind playing a finished game that looked like this.
I'd really like to see this one developed post-jam because it has a ton of potential.