i got stuck when you need to open the gate to start using portals,but to me this is the best submachine i played (i'm playing them in order)
the best of all is the secret part <3
Very fun, addicting series.
can't get ship secret from behind the lamp
Very, very challenging. At times, I almost wanted to give up and I'm sure most players would have, for which I suggest some kind of strategy to keep such players going. A more engaging story perhaps, or something to keep the player in suspense so that he'd want to move forth no matter what.