I enjoyed the movement mechanics, it made for some tricky platforming. I did end up getting stuck to the wall sometimes like the area far to the right near the start where the checkpoint is it was annoying trying to get back through that gap and I couldn't work out how to get across the section to the right.
Nice music too, though it would be nice if the song was a bit longer as it gets repetitive after a while.
Overall a good game, and I hope you can finish it off with an ending and some polish!