Like everyone else says the puzzles are great and really have you thinking, I just have one complaint about the order of the puzzles. Along the way there was 4 or 5 levels that seemed like they should be in the later levels instead, I would get stuck on one of these levels for a few minutes then once it was finished i cleared through the rest
Finally beat it! That was simply incredible, it's sad to see this series go after all this time but I'm glad there is closure to the story. Gonna have to play through it again to find all those secrets and figure out how to get the one at the bottom of the hole... I assume the area where the red lasers are is a location to use the secrets? It didn't occur to me to use them at that point. Anyways, 10/10
I've gotten to the point of having (I think) all portals open except for the one that requires the stabilizer or whatever it was and now I've got three plasma charges, a triple a battery, and a blockade removal tool. no idea what to do now...
 "Blocky XMAS"){kind=icon}
 "Submachine 10: the Exit"){kind=icon}