I like it, but it's not a 10
It's a lot like Canabalt, which you mentioned yourself, and there's nothing wrong with being inspired by a game, and I liked how you made the game a bit more in-depth and with more options than just run and jump.
I also really liked the idea that you could kill enemies if you were speeding up, and that you had lives, but they seemed a bit pointless (at least that you had 5), sincemost of the deaths probably are from falling anyways.
That being said, I have a few comments as well, and I hope you can use some positive critique :D
1: It seemed a bit shallow that there were just 3 speeds, you know, slow, normal and fast. Imo, there should be some transitions between them, so you can't just speed up or slow down instantly.
2: You can just hold down C to throw loads of shurikens, you might want to put a limit on those XD
3: The hook thing seemed a bit weird, if you held down X it would keep throwing new ones on the platforms, sure, I don't fall down, but the mechanism could be a bit better imo ^^
4: Not that important, but you could make the backgrounds a bit more exciting, just to distract the players :D
So yeah, 8/10
+5 for addictiveness
+3 for in-depthness
+2 for style
-2 for minor errors
Also, I like how you reply to most reviews, keep it up if you can! :D