Uncuff someone in Street Fighter II : World Warrior after performing Guile's handcuffs
It is quite difficult, but according to this guide you can do so like this:
Charge back for 3 seconds then hit forward on the joystick along with the Fierce and Roundhouse buttons. Just like in the Handcuffs, you should try to hit the Roundhouse button slightly before the Fierce button. Also, you should hit the buttons slightly after moving the joystick forward.