Cool game! is a little hard at first to get used to change the controls for the movements when you go in an out the drilling areas, but after a while you get used to it.
The main thing I'd love to see on this game is to respawn automatically, I didn't like having to press that respawn button every time I died, specially since it happened a lot! lol, respawn should be quick and easy, not having to change hands positions to the mouse to click that button each time I died to keep playing.
I really liked the mechanics, the game is quite fun to play. Congrats!