That was cool! Its a neat idea, being able to only wall jump.
However, I had a couple issues. It's a little unclear exactly what you're supposed to do and where to go, especially at the beginning. Maybe some signs so you only need to figure out how to get there instead of where to go? Also, I feel that the hazards were kind of hard to distinguish from regular platforms, especially the rails.
Nice job though! I found the voice acting quite amusing!