Really cool concept with incredible presentation! Amazing you made this in a week!
As it stands, I found it quickly got monotonous, but I strongly agree with what others are saying that this could the be foundation of a really incredible game. The style is already there, working with minimal information can be a lot of fun, and looking through the parascope to see a massive warship right on top of you is genuinely terrifying. If there was a progression system of some kind with scaling difficulty and significant stakes (which, granted, is a bit much to ask of something made in a week), this could be an exceptional game.