Use the key on the right key slot (the one you freed your friends from earlier).
Go into the center cell and grab the plunger/suction cup off the ceiling.
Head out of the cell, and go left to the control panel.
Enter 4:45 to open the cell door. You may want to save here in case you make a boo-boo in the next part.
Click on the triangle on the bin that had the broom on top of it.
Bottom circle CCW once (counter-clockwise)
Top right CW twice (clockwise)
Top left CCW once
Bottom CW once
Top right CCW twice
Put the grapple gun together with the plunger.
Head up the stairs and peek through the telescope to see what’s going on. Then head out the door.
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Once outside, push the two stacked crates all the way to the left into the next screen.
Click on the control panel, and follow this sequence:
UP, DOWN, DOWN, UP, UP, UP, DOWN, DOWN, DOWN, UP, UP, UP, DOWN, DOWN, UP
Press the yellow handle on the left of the control panel to bring the magnet down so it grabs the top crate.
Push the bottom crate all the way back.
Step onto the grey mooring anchor, and then onto the crate.
Make yourself tall, and climb the ladder to get into the top room.
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On the control panel, press the red button on the right side, until the arrow in the black circle is pointing southeast. Press the green “Play” button to make the can move into position. Press the “oil” button to make it drip oil on the floor.
Come down quickly, before the dog licks it all up, and shoot him with the suction cup gun. Achievement unlocked.