First off, kudos for even attempting a VR game for a jam. The concept here was strong and builds off what VR does best. The core gameplay of swinging the scythe about and reaping some souls is quite satisfying.
I think the biggest issue keeping this from being an experience to really dive into is spatial awareness. Before I could really rack up any combos I found myself dying to a bullet coming from behind or below me. I am not sure how best to address this. Tweaking the sound effects to better indicate direction could help. Or perhaps a grace period after correctly sorting a spirit that purges bullets over the boat?
Also, the scythe spin is incredibly cool and I had trouble not using it constantly.