Does the Entity Fit in Its Enclosure?

This is a simple 3D game based on an idea I had in a dream. It's my first project in Godot, and my first game that I've made from scratch. All development is done by me and all sounds and visual assets are credited under Creative Commons License.

The premise is very simple - you're in a room and there's something else in there with you, and you have to assess whether or not it fits in its enclosure. Once I learn how, I'm going to make the creatures do supernatural stuff to trick you into thinking they are/aren't bigger than they are but for now it's extremely.