Poor
Okay, I'm not sure how this can have possibly survived. It's almost an insult to me.
Every time I submit anything to Newgrounds it gets blammed, so why does this survive?
You're a lucky bastard, you know.
Anyway, down to the point.
Your coding needs to be a lot better. Firstly, Mario can walk off the screen. Secondly, you need to give people a point to play. A goal to reach, anything. This is more like a personal experiment than a game, and it should not be here on Newgrounds.
Please remove it.