well, sector 2 as dark as hell. I had to navigate by orange panels, some glowing elepments and scarce reflections on twice-dark floor. I almost done sector two and finaly found out that there IS flashlight (to bind it to L is very original move, devs)… but it didn't bring any help at all, cause it lights up nothing. And now I'm stuck, because I can't find the last battery socket.
Also there are vertical ledgers that MC can't climb on, so you can easily fall down and softlock youself.
Hostile aliens can appeare and can not. At first run I havn't met any of them, then softlocked myself on vertical ledger, restarted game an there was two of them. Restarted once more and there was no one again. Dunno it's a bug or a feature