Your choice of platform to develop for was quite interesting. Simple idea for the game but still fun, good, and controls well.
I'll also leave here the link to the emulator I used so other people can try it too: http://torinak.com/qaop
By some weird reason, it was quite a struggle to get the controls to respond. I tried both in Chrome and Firefox and neither was working. It worked at the end, though (Chrome) . It's a nice looking game but needs work on the controls/gameplay. The jump definitely needs to be improved so that it lets you go higher.
Thanks for the comment. You're not the only one that has commented to me about the speed in the first level, so I know what you mean. I just changed that in v1.1 if you want to check it out again.