If you've worked hard on something that you've posted to Newgrounds, and it passes the "under judgement" phase don't ever remove it.
Don't even delete it to get more attention with a newer/far more professional version.

If you do, Newgrounds will tell your users that your submission was blammed (with a complementary ugly dead mutated creature) regardless, of how highly it scored with votes/reviews.

This grotesque insult is because Newgrounds has the same default page for both blammed submissions and those submissions that were manually deleted by their respective authors.

Always either upload the newer version of your movie/game to the same page, or as a seperate flash (if it different enough from the original).