Thanks for playing our game, and leaving a nice response about your experience. I will look into the issue of glitching trough the walls, although, in some places we made glitching trough the walls intentional, to reach treasure behind hidden walls.
Thanks for playing our game, the green squares are meant to disappear when you touch them to extend your battery life, for the other squares, you are meant to press space and drag them with you to surface, into the big white box(Submarine).