From what I have played, the grahics are amazing and the gradual increasing music is also nice.
I could not get past wave 5, I assume there is more to the game because of the description and other comments, but its way too hard for me.
The difficulty feels artificially high, which might be fine if that is what you intended, but it makes it really hard to judge the whole thing as a jam game specifically.
A lot of things feel like they are overtuned against the player. e.g. the delay on wand turning as you move the mouse or the lack of I-frames where you could just get juggled by a few ghosts and arrows if you get hit once. Also I thought the bow enemy was especially hard to deal with as it seems to be shooting faster or at a random pattern each time it got hit.
Maybe the bomb enemy could also damage enemies or something to make up for some of the difficulty in fighting a big horde of enemies.