A very interesting concept for a game, sadly I struggled a lot to figure out how to play it well. Having all the communication through one button made it hard to even get the reaction I wanted. I think if you made each response its own button it would actually go a long way in making this more fun. If each reaction is its own button it would put all the focus back on trying to understand the alien instead of struggling on which button press is needed. The concept of trying to understand the alien is fun, and I enjoyed trying to determine what it was saying, really cool idea.
Thank you for sharing, I hope you find the feedback helpful.