It's nice.
It's got a great concept, just, the execution wasn't amazing, which I can't say I blame you for. Don't worry, it's not a bad game. It's just not perfect--and no game is. So, you've got this guy running. That's the big focus. Sadly, the animation for the run is very very bad, and it's hard to actually get into the game with a "run" like that. Also, after a while, it gets difficult, and boring. The same thing over and over, same mountains, same animation, same saws(?)
However it's a nice concept. Maybe in the future you can revisit this Flash. :)