I dig it! It reminded me a lot of Canabalt, if you're familiar with that game. There's a decent variety of obstacles, and it was satisfying to gain momentum again after getting tripped up over a box. Plus, you did a good job with the character's design. Their red color stood out really well against the blue-gray objects and BG. One thing, though, is that I think this could really use a high score board. This seems like exactly the kind of game made for it.

I do not see the character so I don't know when to jump.

EDIT: Yup, zooming out the webpage worked. Thanks. Entirely ok endless runner. Good sound design.