very fun
just thought i'd give you the kind of positive review you deserve, to help balance out those who give it a low rating because they're bad at it. as it's already been pointed out in the comments, it makes the game a lot easier if you come out of the ground at a low angle to reduce air time and vulnerability. the gameplay is innovative as far as i can tell (haven't seen a game like it before), controls are smooth (having a minimum turning circle is necessary to stop the game being too easy, though some seem to think that this constitutes 'bad controls'), graphics are engaging, level progression is good, gameplay is simple enough to get into quickly, yet varied enough to allay boredom. only constructive criticism i have would be to reconsider the system for regaining health - as it's already been pointed out, it's not fun winding around the inside of the planet trying to avoid worms when you're on full health.
overall, a very fun game which lets me pretend i'm the giant worm thing in dune.