I just gave this a try. I liked it overall. I like the precision required on the rat segments and throwing the knives.
I did get stuck though, I wasn't able to find my way out of the room with all the doors. I went back the way I came to enter the rat tunnel again and the camera did something strange where the rat was underneath the floor.
You hit the animals and projectile well. I didn't get to the end of the story but escaping the facility was engaging. Good job :)