A really interesting idea, but I found it nearly impossible to make any progress. Controlling the character is very awkward and sensitive, and the game didn’t recognise my USB gamepad… not that I’m sure it would’ve been any better than the keyboard controls. (I’ll add that the default controls made no sense to me. I replaced them with A/D for left/right and arrow keys for hook control.)
The hook seems to hinder more than help, as it’s hard to aim precisely—plus it reels you in nigh-instantly, and then it seems you just fall down wherever it brought you, with no mid-air manoeuvrability to correct your positioning (or else it just happens so quickly that it seems like you can’t correct).