It's well done...but it's pretty difficult! The game usually ends very quickly the first few times, since there are so many things you have to figure out--if you go too slowly the wave kills you, crabs will block your path endlessly unless you jump them, sandcastles slow you down...I mean, it's not BAD that those things are in the game, but it's all unexpected, especially since you have to learn to deal with all that stuff before you even BEGIN to grapple (odd because the word "grapple" is, you know, in the game title...).