If this was fully fleshed out, it would've been a great experience. Especially with how interesting the plot is. As well as the Alien Boss character. Like why are we working for this thing in this place that keeps getting bridged by different aliens.
I had a lot of fun playing it. In the first round, you can kind of cheese the gameplay by just spamming "E" and not having to shoot anyone because you can't die. Second round was the challenge I was looking for. The twist at the end was interesting. Although the controls for the spaceship is awful.
Again, if this was more polished, with the story, characters. and gameplay, this would've been a hell of a game.
Great job.