Really cool concept! The execution seem extremely low-budget, but the idea is great. With some (a lot) polishing and several different levels, I think the game could be a hit. And yeah, the mute button, really. Please.
SPOILER AHEAD
@MadCrimson: I got stuck there too for awhile, then I started wandering around... I found that you have to go to the underground and use the engineer view to get something before you head to the ship.