Immediately sets the stage with that low droning horn, really brought me back to the original Godzilla OST and made the scale believable, which is so important when dealing with mechs and kaiju. The cockpit feels like a functioning space and the subtle parallax is great, but sometimes makes it a little tricky to accurately hit the centre buttons quickly in a panic (and kudos that it definitely invokes panic XD.) I think with some extra ways of controlling the Mech's systems like keyboard inputs or controller support could really add to that feeling of power and mastery against impossible odds.
Really awesome work, good luck to you.