Way too repetitive. Enemies are so slow and useless that there's no real challenge. No animations for walk. The only enemy that could do something at least was ghost because they could walk through walls. Layout doesn't change, everything stays the same.
Plot isn't explained, you just kill vampires, then zombies, then whatever, and then you somehow escape the house though deer still get you. Way too much repetition.
Need more. It seems like you didn't want to do more so just replaced one enemy with another and called it a new level. Doesn't work like that.
You say you have open source, and yet on the linked github there's literally nothing in the repository. I won't tolerate false promises.
I say no to this one.