Overall game was pretty good. The inertia was harsh, but that made sense to me. What could really use some help though was the camera, it felt like it was normal for Y positioning but then reversed for X. And it was also very sensitive - I had to put my mouse to very low sensitivity.
I got stuck on the level where you need to jump from a narrow rail to another rail - I kept falling off. Every time I dashed it pushed me down and every time I tried to just jump I would fall. :(
I really liked getting the gem that let you have unlimited power - that was super fun.
Nice job.
-Azulles