itch.io

Set your screen size settings for your itch page a bit bigger, it's cutting off the sides. 
For example I build for 960x600 (sits in a web page nicely), and set my itch page to 1000x660, to get the full game plus unity border in.
Also,.. I broke your game by going left at the start and falling forever, might need something to either stop me going that way, or killing me off if I do (and in platform games, I'm always going to try going left at the start, as sometimes people hide an easter egg there, for classic game reasons :P).
Actually game wise, controls and mechanics felt good. Nice and speedy in general. Good job.