Wow, the game right now is a really impressive start/prototype. It controls surprisingly well and easy, and feels good to play. Played around for quite a while and it is fun as it is, and with web-swinging and the other stuff you're planning on, this will become an awesome game :D
The IK is also really well done, it feels like a spider, at least to me, not that I know how a spider moves. The googly eyes add to it as well :)
Good luck with this project, it has a lot of potential!