Amazing graphics and really cool idea!
I was confused on what to do initially until I found the help menu (ESC in the main level, but on the first screen ESC will kill the game). Shooting the ropes and climbing around is really fun but I wasn't able to progress very far (despite many replays, all of which were pretty fun, just extremely challenging for me).
I can see myself coming back to play this again since I really want to figure it out, but I also I think I would enjoy a free-play mode where I could explore at a less frenetic pace.
The music was great and I really liked the sound effects.
Overall extremely well done in all categories.