It was alright...
...but could've been way better. You had a great idea with the enemies smashing against the screen, and the fighting parts were good. But you should've (a), made it so Metaknight actually looked like he was walking near the end, (b), made the text easier to see, and (c), made it funnier. I can tell you tried to make it funny, but calling people n00b shitheds lost it's appeal when I was 10.