Cute game! The rescue concept was interesting, and it wasn't difficult to get a hang of playing. The helicopter felt smooth to control for me, too. I agree with what another comment said about possibly adding a UI in game to check the controls, as I also didn't know that I could pick things up until I checked the page. I also agree with another comment as well that adding damage via contact with the water or some sort of weight mechanic would be interesting as well, but I know that that does take time to implement, and I imagine is no easy task to put in in a week, let alone by a one person team.
Good work!