After all these years, and growing up with Windows 3.1, I have seen an entire evolution of computers and software. Touch screens and large resolutions were a pipe dream just 15 years ago. Now it's the norm. Going from a Packard Bell (yes, before HP) that couldn't run 3D Ultra Mini...
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.