TWIN !!! Another vampire entry! : D
I like the concept of being a vampire, having the blood act as draining resource that's clever! I also really like the artwork it's cute and the variety in enemy designs, but at the same time having similar armour. I also like the effect of the screen getting darker when you are low on blood.
I appreciate you having an icon showing the aim direction, however I ended up spamming the bite most of the time, I would suggest having the bite just as a healing move and not damage so there's a balance of using both actions in the move set.
The gameplay loop is pretty solid, although I would suggest increasing the difficulty more per rounds, and giving the enemy types more attacks, as well as attack animations but understandable given the time limit this was made in.
Good effort all round though! Well Done! : )