For level 13: The youtube video I saw was a bit different, yes, but its doable:
Go to the blue/green button. Move the whole, step on the yellow, the whole back, move up, step of the yellow, move the whole, go through the lower doors, pull the long yellow out, go over it through the upper doors, from the upper view step on the long yellow, move the whole block and you can go to the red button.
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 "Scream Collector"){kind=icon}
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