In all the talk of graphical downgrades no one seems much preoccupied with 'why?'. Why build something and then proceed to tear it down, piece by piece, in the hope that ever more diminished expectations about the final product won't be severe enough to...
You can overlap moves and that is essential for some of the harder puzzles so use it.
Don't waste a shot breaking a piece of glass - try and hit something first.
Explosives are great, and go through solid platforms.