Here is my walkthrough for levels 76, 77 and 78.
Escape Action Level 76 Walkthrough
Remove the green leaves, arrange the letters on the top of the door as “PASSWORD” to finish this level.
Escape Action Level 77 Walkthrough
Arrange the flags as indicated in the image to move on to next level.
Escape Action Level 78 Walkthrough
Click on the jumbled circuits to connect all of them as shown in image. A stick will fall on the chair once you shake your phone. Use it to connect the circuit as shown in figure and swipe the blue drop symbol present at the bottom right on the screen. Torch will get lighted and the door will be blasted.