Beating a dead horse
I remember liking Madness when I was younger.
Why is it still around? ):
The idea of portal madness opens up some brilliant possibilities but I felt that this lacked imagination and was too slow moving to be interesting.
I don't think madness fits well with portal, it just seems awkward and not right... sticks work.. and so would actual drawings :P
looks like you used trace bitmap for the background, traced the portal gun, and used backgrounds from portal: the flash version. i really don't see much effort put into this, or why its rated so high, it wasn't even fantastically animated, and it was very short.