For an alpha demo this is really fleshed out, not any detectable bugs in the actual play area of the game (I'm going to ignore the debug room because you're not supposed to play in it).
While this game will be great as a standard platformer, like Grimhelms Alien Quest Eve, with the atmosphere and the reactions of the aliens to enviromental factors such as the flashlight I could see it played out as an entire space station with more random alien placement rather than hard set with your story happening around the station rather than just farther into the level, and having to go to different portions to restock on magazines and repair your space suit, or even detox from the aliens to not get the game over and even to progress whatever story you are planning.