I couldn't agree more that this is a very interesting and creative take on the theme. However, it lacks proper execution. I definitely needs a controls menu/instructions, I was only able to figure out how to become a bat because Grace told me how, until then I was stuck in the first kangaroo not knowing what to do. Also, the flying mechanic needs to be adjusted, you can glitch to fly infinitely and you can get soft locked in some places above the buildings, since the bat bar doesn't regenerates unless you touch the ground (I believe). Also, the blood bar can be interacted with the mouse, make sure for UI bars, you turn off the "Interactable" option in the inspector. On the other side, the 3D models for the buildings look really good, as well as the vampire character (maybe some hair for him, but I understand in a 4 day deadline it was complicated). Overall, I think this has a lot of potential, just need some basic instructions and some balancing. Still, good job!