How to do detect which side did a bullet come and kill

[TheMegaPeguinPro (deadbeef)]

If using raycasting for the bullets, this post should help:

How do you find the side of a part using raycasting?

This is answering the literal title of your post. IT’S MATH TIME! Part of what is returned by a raycasting operation is a normal vector, which is a directional unit vector that faces straight out of whatever face was hit by the raycast. If you simply want to find the side of the part we hit, we can compare the normal vector we hit to the vectors that make up the face normals of the part and return the face for the given side. This leaves us a question: how would we compare two vectors to see…

You will need to pass the RaycastResult’s Normal and Instance parameters into the NormalToFace function, then play corresponding animations to the specific Enum.NormalId