Double Dragon 2 walkthrough (SNes): Mission 66 - %nomNiveau%

Push the elevator at the bottom left (photo 1), then quickly take the 2nd floor stopper and place it on the isolated platform just to the left (photo 2); when the tumbler bounces off it, take that stopper again and place it all the way at the bottom right (photo 3) so the tumbler comes back towards the trigger!