Really fun game, and a good twist on the vampire survivors like. The combat felt nice and the upgrade system was great. Adn good to see another grave robbing game in the jam ;) Only suggestion i would have is on the UI - it didnt quite seem to fit the vibe of the in game art and felt too cluttered.
Other than that it was a really good effort that you were able to add this much content in just 4 days, well done!