Its a bad game, No animation, No sound, And impossible jump.

You have a lot of glitches, you have a bad sprite that doesn't react or change to inputs of direction, you have a really wierd UI that takes browser inputs for in game inputs, HOWEVER this was probably your first game and I respect the effort. If it isn't I'd be 2 stars lower, or 3 stars higher depending on how much effort you put :P

The Fourth Jump Is Impossible, And It Scrolls Making It A Mess To Play

Quite unplayable,

The browser for some reason still takes keyboard inputs when playing, thus when using the arrow keys. It doesn't even feel like the "ninja" could even make the second jump, I'd test it more but it's quite annoyig seeing my page constantly scroll when doing such a simple jump.

I'd recommend you to play test things a lot more before releasing them