Hi, whats'up?!
I just played the game, it is very nice! I just didn't undestand why has 2 buttons, I only used 1. I reached 5337 points in my best run :D
Are the platforms random generateds? Because some times they are very hard, and in other they are a little more easy. Oh, and the majority of the times I got a chest I didn't see his effect, maybe a bigger text would help.
Congrats for your submission!
And I think you noted, but you uploaded the web version in the wrong way. You should click in the option "This file will be played in the browser", this option is where you upload the file of the game.