What about it? Really, try to be more specific with your posts (like, maybe, put a body in it somewhere?)
But as BlueMonk said, he wouldn't even want to try it using SGDK 1.x. And if he doesn't want to try, well, I certainly don't. I think that it could be done, but it's the kind of thing that would be actually easier to do by writing your own entire engine (or drastically changing SGDK's) and implement the drawing using BMDXCtls (though drawing of the grapling hook itself would have to be done otherwise, I believe).