Orange Runner Improvable, but still awesome.
I find this very entertaining! However, it could still improve. The saws are harder to dodge below around 75 mph; shouldn't it become easier to get back on your feet when you slow down? Also, at certain speeds below that, it is IMPOSSIBLE to dodge them, since you'll land on them no matter how you time it.
Not that it's a good thing to slow down, but the same thing happens above 190. If you're going fast enough, the distance between relatively shrinks to less than the distance you can jump, which means when you're jumping over a series of saws, you'll eventually land on one. I think the distance between saws should increase as you get faster to compensate. The warning signs should also compensate, but just enough so that timing the jump is still possible, but still difficult.
One more thing: the invincibility feature should be more visible than just blinking. Since when you're up to speed the background and everything else is flashing, it's hard to differenciate that with the blinking. Perhaps a change of color or a contrasting (as in, blue) barrier that appears around our hero? That way it's easier to tell when you have it and when it runs out.
Other than that, great game. Not quite a 10 in my book, but very good nonetheless. I like it (:
