The cooldown on the attack killed it for me. I went in thinking the idea was really cool, but I have to admit I don't really enjoyed the implementation. It made very fight tedious. I ended up killing the pears by blocking them against the right wall and hitting them repeatedly with the mace without bothering about avoiding their projectiles, I used the sword maybe once or twice then never again. The scythe has a really poor range making it impossible to hit something and not get hit. The spear was all right I think.
Also, a better keymapping could be arrows to move and WASD for the weapons, and E to use. Trying to remember which key was a pain.
I don't think you need to change many things to have something really enjoyable: remove the cooldown, remap the key, add more range to the weapons and change the enemies a bit. Then add some polish with basic animation and I'm sure you'll have something great in your hands!