Double Dragon 2 walkthrough (SNes): Mission 71 - %nomNiveau%

First deal with the 2 topmost floors, placing the separator correctly (photo 1), then swap the rightmost tumbler with the rightmost yellow domino on the 2nd floor, and the leftmost delayer with the leftmost yellow domino on the 2nd floor (photo 2); still on the 2nd floor, shift the puncher and explosive one notch to the right, and swap the tumbler and delayer! Finally, take the yellow domino at the bottom right and align it with the 4 yellow dominos at the bottom left (photo 3); all that remains is to knock the 3 top dominos over with a push, and take the 4th to drop it on the separator!