NEED help with lego minifigure pls!

i want to animate the lego minifigure and want it to get destroyed like you can see in the video. a guy suggested me this: You probably want an animated body (parented to a bone or something) and a regular, unanimated body (unparented to anything), with a rigid body constraint to connect the two.

but i can’t make it. i try to figure it out for 2 weeks now. pls help me. here you can see it
https://drive.google.com/file/d/1ivi7jyhBLwWyO7b0jqbG7E31GrsrnSfs/view?usp=sharing

in the Rigid Body settings, you have an Animated option that you can keyframe, have you tried?