How can i Stop an Animation in a random frame?

So, Im trying to make a random stop animation frame, but this is not working. The gif always stops in the last frame, and i want an random option. Can someone help me with that? Its an simple game btw. Thanks xD

Set the speed to 0 (like below-1) for your animation then play then where as u want in your code(use below-2)

1 - i.imgur.com/xSbSMGc.png

2 - i.imgur.com/O2v6xHc.png