Hookshot games are always awesome, but I think yours is a little on the tough side. The genre is usually about gleefully flinging yourself through the air and that's what your adventurace preface made me think the game would be. Instead, it's a Super Meat Boy level precision platformer. I can't fault you for not making the game I expected. This is just a lengthy excuse for why I didn't finish your game.
On the game design side, since you can't do anything while hanging from the wall, it would be nice if left clicking detached you from the wall and fired the next anchor point. Quickly hitting RMB then LMB is just unnecessary complexity when there is only one thing I could possibly want to do when clicking LMB.
As for the hookshot mechanics, they actually work fairly well: giving a decent amount of swing while still taking you where you want to go. My only problem is that the level design generally seems to favor a Legend of Zelda style (straight to the target) style hookshot rather than the Spider Man style swinging one actually in the game. This leads to the aforementioned difficulty where spikes tend to be in the way of your swing when approaching your destination.
Thanks for making this game. It is pretty good. This is just kind of my pet genre, so I'm a little more critical of hookshot-centric games.