Cool game! The opening cutscene was great, and so was most of the rest of the game.
Just a few problems: 1. The rope mechanics were hard for me to grasp (why does it sometimes just seem to act as a boost and other times it actually clamps on?) and retracting the rope felt way too slow in the final chase scene. 2. As a lot of comments have stated, the ending chase sequence is way, way too long and really hard to get through at some points, which wouldn't normally be an issue, but having to navigate that maze of spikes multiple times was awful. 3. Minor one, but there's some sort of movement bug on the moving platforms. They don't seem to allow you to change direction unless you jump for some reason.
Overall though, this was a really cool idea and with a bit more time could really be something special.